I only run ASTM 6751 grad B5-B99.9 bio diesel derived from biological matter or recycled and transesterfied and filtered WVO. No problems so far. Did it in my 04 6.0L Powerstroke and now in my 02 VW TDI 1.9L!
@0410195757 Nope no bio fuel. I had thousands of gallons of waste oil and used auto trans fluid at my disposal. So that is what I used. I don't have time to ride around the neighborhood trying to beg for used fryer oil from every restaurant.
I ran my 1989 F350 with the 7.3 IDI off of WMO for well over 14,000 miles, the Injection pump died from age after 5,000miles, and the new one has run well over 8,000.....and still kicking.
I invested into the centrifuge, I invested in many upgrades to my truck, and I cannot give the secret away, I actually get better mileage, less smoke and more power from the WMO.
It's Damn expensive to upgrade your truck to run it, but with patience, you'll see the payback you get, in positive. $0.35/gal ATM
@powerstrokehelp I agree, it's ALL a matter of opinion, and determination, you have to spend money to make money, and in some aspects, that fits with this, I've been following along your channel for some time, the wife and I think it's time to invest into a newer Diesel, and we've found a stunning '97 7.3 PSD with 132,000 miles for $4000, I've learned a lot from you, and appreciate it, I just felt sharing my experience would show that there ARE options, you've just got to get it right. Take Care
where the hell did you get that centrifuge? im looking at the veggiestrokeV# right now, just jumped up 300 bucks over the last 2 weeks. just subscribed and looking forward to watching what you offer. thanks
Ok so, I'm a bit of a noob in this department but wanted to start a project car that ran on WVO. So far, I've gathered that old Merc diesels are the best for the job. What do you reckon I should get and then, how much money is required on top to get an efficient dual-tank system in place?
@shaazy I have a 85 300d and love it. It is simple and dead on dependable. And if you get a bad batch of fuel it wont set you back 3Gs for a set of injectors. Just empty the filter and the tank and keep on rattling down the road. I dont mess with WVO because I dont have the time and when the Glyceryn goes rancid in the summer heat it gives me the heaves. But if you hae a good supply of oil and can process it correctly then it can be a good gig.
I don't really understand the need for your marine heat exchanger.... Seeing that it heats the fuel via engine coolant then how does the fuel get heated when your trucks been sitting overnight??
@xjinit I ran many different types of fuel blends that included, used auto trans fluid, used motor oil. Regardless the truck was always started on diesel and then switched once it was running. Most of it was a complete waste of my time.
So with the alternate heated tank and cleaning the wvo with a centrifuge there is no alcohol or lye required? Have you opened up a engine that has been ran off of correctly filtered wvo only?
@texaswindowcleanerT The centerfuge will NOT get the glyceryn (animal fat) out of the WVO. I have been inside several engines that were run on WVO and for the most part they are clean but there is a tendency to get carbon build up from the combustion process so much cooler. This is a real problem with 6.0s due to the EGR valve and cooler. With the cost of diesel going up and up more folks are running WVO. Save your money for injectors because WVO does shorten injector life.
I completely agree. The idea of biodiesel is sound , and commercially made stuff is good. But most homemade biodiesel is under-processed and ends up causing problems. I've seen our local "Shade Tree Biodiesel" guru stranded by the side of the road several times - fuel problems. You are going to pay for the true cost one way or the other - you might get away with a 55 gallon drum and a paint stirrer at first, but then you pay for repairs. And as you said - Waste Veggie Oil STINKS.
you think $5 a gallon is bad? here in the uk its $9 !! using old veg oil is the only way, it costs so much. but veg oil is always being thrown out. best way to get good oil is to target the high end restaurants and get there not to dirty oil. works great for me. takes 10 mins to put a batch into the filter and leave it. come back and i got a full tank of fule ready to go in my 2nd tank :)
The reasons to run a diesel...... it will run on damn near anything. Thats why I'm looking into adding a 2004 or 2005 Excursion with a 6.0 L as my go everywhere vehicle. I don't have the best of luck with my Old Suburban right now, that old diesel has so many leaks in it I think its easier to list whats not leaking...the cooling system..LOL. Well I guess after watching all your videos I should be able to find a good Diesel Excursion now that I know what to look for.
say if you was in a jam and the the truck is on e and the only thing you had in the back of the bed of the truck is a new 1 gallon veggie oil can you use that for a few miles ?? and is it safe ??
You said to use "high quality Rubber hose". I am of the impression that any rubber hose will eventually break down with veggie oil, including bio-diesel. So it's best to use synthetic hoses....
I ran straight vegetable oil in a diesel tractor I have, and the efficiency of the engine increased a bit, it ran at higher temperatures, produced more smoke on idle and produced less power over all. You're definitely right about starting. Cold starting my tractor on an 80 degree day requires a good run of the glow plugs, whereas I can get by without them on ULSD. Vegetable oil is suitable as an additive, in my opinion but not as a primary fuel only due to the high cost.
Great info. Thanks! It seems the only way to make this truly feasible is to have large co-ops that allows this kind of bio-fuel processing on a large scale, and legislation that makes it worth it for businesses like yours to donate your potential feedstocks. If the equipment is maintained right, the volume of feedstock high enough, and a system put into place to keep it going 24h/day such a co-op should be able to produce a decent mixture for diesel use.
Your video is great until you mention running waste engine oil. What the hell. If your gonna do that then why chang it in the first place. Think about it. But its great that you say to the idiots, Your a retard for dumping that shit strait in. Loop hole forever!
Oh I'm running MFI note, Not that pain in the ass EFI.
Had a question and a thought.. Suppose you made your own biodiesel out of WVO, and knew what you were doing. What then would you do to your truck? Would you still install the 2nd tank, switch, heater, ect? Or would you just add 10 gallons of bio every time you filled up and save $30 to $50 a tank? Would you consider running straight bio if you made it yourself and it met YOUR standards? And what do you think your standards might be?
My best test mule is a 7211 Zetor farm tractor, single tank,up to 75% wvo/wmo, rest diesel. It starts well and clears up in about 5 minutes.
This expensive equipment to filter it makes little sense, what are you gaining? I have been settling my fuel and running thru a milk strainer, it is then allowed to settle some more. I draw it off with a pump held off the bottom. It sems to be worth the effort at this point.
That plugged fuel pick up is due to WVO usage. I do not use WVO but use properly processed biodiesel. Using WVO does not remove the glycerin or deal with the acids that are present. Processing WVO into biodiesel solves all of those problems.
Alot of people get Bio Diesel and Waste Veggie oil confused. Looks like your customer thought Bio-Diesel = pouring restaurant grease into the factory tank. Actual Bio Diesel requires chemical processing which preps it to be used in the factory tank, mixed in any proportion with #1 or #2 Diesel fuel.
You're right about it not being worth the effort at today's fuel prices. If the price doubles again it would be. Most puke'n'choke's know they're sitting on gold and charge accordingly.
This past weekend tried commercial Bio diesel B-5 for the first and last time . While towing our 11k trailer up a 7 % grade @ 7000 feet the turbo lost its boost power momentarily .
I think what they call a Turbo Fart ? Needless to say the 15 cents per gallon I saved buying Bio Diesel was not worth the aggravation .
You'd be surprised who i see running the stuff. The guys that i have seen are most successful are the straight laced engineer types. It's not just for Hippies any more.
@cowboyup343 Tell that to the US Navy, the largest user of biodiesel. This damage is due to running WVO isn't heated. Properly made biodiesel will not damage your engine. Newer engines are far far less tolerant of poorly made biodiesel. I've been making biodiesel for 5 years. I DID NOT USE BIODIESEL UNTIL I HAD MY PROCESS PERFECTED.
Very good video. I'm glad to finally see an intelligent and balanced voice on this whole veggie/alternative nonsense.
However, I wouldn't be so keen on advertising that you have/will run illegal fuels in your shop truck. The EPA is always looking for its next source of income.
Great vid Bill; all your vids are fantastic. My problem is that your soooo far from Vancouver, how the heck am I gonna get my F550 regularly serviced by you instead of all these idiot mechanics up here that charge an arm and a leg and don't know diddly-squat.
i just shake my head when i hear somebody say you can just pour wvo in your tank and go. having worked on ships that burn heavy fuel at sea, i know that you have to heat and filter it well or it won't work. thanks for the visual evidence that your fuel system will get totally screwed if this isn't done right.
nice vid well explained and i just hate those idiots that put random crap in they fuel tank and then blame it on the engine when it fu-ksup, that its a crap engine and so on, but usualy it beacouse of them the owner for puting so much crap in there
How do you spell that filter? Is it Ray Core? Or different?
This sounds like something I would want to do for this truck im going to buy. Granted its an 85 f250 6.9. But the guy tells me the diesel in it is 6 years old. And yes I am going to drain it all for new. And when looking at everything that water seprater is bypassed. Yeah I know :( But the truck does run very well, doesnt smoke much at all. Ive Always wanted a diesel and i think this truck is really worth saving.
Excellent vid Bill!! Very interesting stuff, sounds like alot of the stuff ive read in Diesel Power mag as far as testing different oil based fuels in a diesel.
Im always suspicous of bio-diesel at pumps and from individuals who dable in making it. You just dont know the quality. Same with #2 diesel really. I dont trust alot of gas stations diesel. Most have dirty tanks, dont keep the tank full, dont move much fuel. My 6.0 only see's diesel fuel from a quality station that moves alot of fuel.
Ran like a champ. Light oil consumption. Got 17.1 mpg on the way down and 14.0 on the way back. Probably get better as the new rings set in the bores a little better. No complaints for a motor built from extra parts.
Thanks for the info. It will definately come in handy for a friend of mine thats looking into getting a diesel truck and running used deep fryer oil from restaurants. Keep up the great videos.
I only run ASTM 6751 grad B5-B99.9 bio diesel derived from biological matter or recycled and transesterfied and filtered WVO. No problems so far. Did it in my 04 6.0L Powerstroke and now in my 02 VW TDI 1.9L!
JamesTyreeII 1 month ago
@JamesTyreeII The WVO game only works with this attention to detail.
powerstrokehelp 1 month ago
@powerstrokehelp I'm a bit confused, you say don,t use bio fuel in your tank. Surely you are talking about filtered waste veg oil?
0410195757 1 week ago
@0410195757 Nope no bio fuel. I had thousands of gallons of waste oil and used auto trans fluid at my disposal. So that is what I used. I don't have time to ride around the neighborhood trying to beg for used fryer oil from every restaurant.
powerstrokehelp 3 days ago
what your thoughts of the b20 the stores sell?
wildcumminsman 1 month ago
@wildcumminsman As long as it is cleaned it should be OK. Its the WVO that is not processed properly that is the problem.
powerstrokehelp 1 month ago
hey, love your videos! all the way from the UK. $5 a gallon? Diesel over here is over $9 a gallon. BioDiesel is a must!
sjowner 2 months ago
@sjowner Just make sure it is clean before you put it in your tank.
powerstrokehelp 2 months ago
I ran my 1989 F350 with the 7.3 IDI off of WMO for well over 14,000 miles, the Injection pump died from age after 5,000miles, and the new one has run well over 8,000.....and still kicking.
I invested into the centrifuge, I invested in many upgrades to my truck, and I cannot give the secret away, I actually get better mileage, less smoke and more power from the WMO.
It's Damn expensive to upgrade your truck to run it, but with patience, you'll see the payback you get, in positive. $0.35/gal ATM
KingOfTheClutch 6 months ago
@KingOfTheClutch with patience and enough time money and effort it can be done. BUT just bolting in a vegistroke system is not the answer.
powerstrokehelp 6 months ago
@powerstrokehelp I agree, it's ALL a matter of opinion, and determination, you have to spend money to make money, and in some aspects, that fits with this, I've been following along your channel for some time, the wife and I think it's time to invest into a newer Diesel, and we've found a stunning '97 7.3 PSD with 132,000 miles for $4000, I've learned a lot from you, and appreciate it, I just felt sharing my experience would show that there ARE options, you've just got to get it right. Take Care
KingOfTheClutch 6 months ago
where the hell did you get that centrifuge? im looking at the veggiestrokeV# right now, just jumped up 300 bucks over the last 2 weeks. just subscribed and looking forward to watching what you offer. thanks
nerdlinger2 10 months ago
Ok so, I'm a bit of a noob in this department but wanted to start a project car that ran on WVO. So far, I've gathered that old Merc diesels are the best for the job. What do you reckon I should get and then, how much money is required on top to get an efficient dual-tank system in place?
shaazy 11 months ago
@shaazy I have a 85 300d and love it. It is simple and dead on dependable. And if you get a bad batch of fuel it wont set you back 3Gs for a set of injectors. Just empty the filter and the tank and keep on rattling down the road. I dont mess with WVO because I dont have the time and when the Glyceryn goes rancid in the summer heat it gives me the heaves. But if you hae a good supply of oil and can process it correctly then it can be a good gig.
powerstrokehelp 10 months ago
I don't really understand the need for your marine heat exchanger.... Seeing that it heats the fuel via engine coolant then how does the fuel get heated when your trucks been sitting overnight??
xjinit 11 months ago
@xjinit I ran many different types of fuel blends that included, used auto trans fluid, used motor oil. Regardless the truck was always started on diesel and then switched once it was running. Most of it was a complete waste of my time.
powerstrokehelp 11 months ago
@xjinit You didnt listen because he said to always start the truck with CLEAN diesel and switch over while on the ROAD.
1977SVTLightning 4 months ago
So with the alternate heated tank and cleaning the wvo with a centrifuge there is no alcohol or lye required? Have you opened up a engine that has been ran off of correctly filtered wvo only?
texaswindowcleaner 1 year ago
@texaswindowcleanerT The centerfuge will NOT get the glyceryn (animal fat) out of the WVO. I have been inside several engines that were run on WVO and for the most part they are clean but there is a tendency to get carbon build up from the combustion process so much cooler. This is a real problem with 6.0s due to the EGR valve and cooler. With the cost of diesel going up and up more folks are running WVO. Save your money for injectors because WVO does shorten injector life.
powerstrokehelp 1 year ago
I completely agree. The idea of biodiesel is sound , and commercially made stuff is good. But most homemade biodiesel is under-processed and ends up causing problems. I've seen our local "Shade Tree Biodiesel" guru stranded by the side of the road several times - fuel problems. You are going to pay for the true cost one way or the other - you might get away with a 55 gallon drum and a paint stirrer at first, but then you pay for repairs. And as you said - Waste Veggie Oil STINKS.
Au197 1 year ago
you think $5 a gallon is bad? here in the uk its $9 !! using old veg oil is the only way, it costs so much. but veg oil is always being thrown out. best way to get good oil is to target the high end restaurants and get there not to dirty oil. works great for me. takes 10 mins to put a batch into the filter and leave it. come back and i got a full tank of fule ready to go in my 2nd tank :)
huntman40 1 year ago
The reasons to run a diesel...... it will run on damn near anything. Thats why I'm looking into adding a 2004 or 2005 Excursion with a 6.0 L as my go everywhere vehicle. I don't have the best of luck with my Old Suburban right now, that old diesel has so many leaks in it I think its easier to list whats not leaking...the cooling system..LOL. Well I guess after watching all your videos I should be able to find a good Diesel Excursion now that I know what to look for.
adamslurch71 1 year ago
@adamslurch71 If your looking for an Excursion get the 2000-2003 7.3l it is way more forgiving when coming to WVO and just about anything else.
pynkcelebrity 6 months ago
modern motors with the finer tolerences in fuel systems cannot cope with bio-fuels
very good veiw and comments .
The1200sportster 1 year ago
One of the more intelligent, articulate and informative videos on WVO on Youtube.
Thanks
Joewalshe38 1 year ago
oh man looks like a nightmare!
gardnerbm 1 year ago
say if you was in a jam and the the truck is on e and the only thing you had in the back of the bed of the truck is a new 1 gallon veggie oil can you use that for a few miles ?? and is it safe ??
gypsyroofing 1 year ago
You said to use "high quality Rubber hose". I am of the impression that any rubber hose will eventually break down with veggie oil, including bio-diesel. So it's best to use synthetic hoses....
dlr71mi 1 year ago
HELLO CAN YOU TELL US WARE TO GET THE MARINE HEAT EXCHANGER AND THE RACORE FILLTER.
JohnnyDontKnowNada 1 year ago
alternative fuels are carp. whe do you think they have stuck with the same stuff for 110 years.lol
V8Jagnut 1 year ago
I ran straight vegetable oil in a diesel tractor I have, and the efficiency of the engine increased a bit, it ran at higher temperatures, produced more smoke on idle and produced less power over all. You're definitely right about starting. Cold starting my tractor on an 80 degree day requires a good run of the glow plugs, whereas I can get by without them on ULSD. Vegetable oil is suitable as an additive, in my opinion but not as a primary fuel only due to the high cost.
jet62095 1 year ago
Great info. Thanks! It seems the only way to make this truly feasible is to have large co-ops that allows this kind of bio-fuel processing on a large scale, and legislation that makes it worth it for businesses like yours to donate your potential feedstocks. If the equipment is maintained right, the volume of feedstock high enough, and a system put into place to keep it going 24h/day such a co-op should be able to produce a decent mixture for diesel use.
solarnowconsulting 1 year ago
very informitive,thanks for the info
Needmorehorsepower 1 year ago
Your video is great until you mention running waste engine oil. What the hell. If your gonna do that then why chang it in the first place. Think about it. But its great that you say to the idiots, Your a retard for dumping that shit strait in. Loop hole forever!
Oh I'm running MFI note, Not that pain in the ass EFI.
FarceTheory 1 year ago
you don't want to use rubber hose veggie oil eats rubber!
13brotary 1 year ago
Had a question and a thought.. Suppose you made your own biodiesel out of WVO, and knew what you were doing. What then would you do to your truck? Would you still install the 2nd tank, switch, heater, ect? Or would you just add 10 gallons of bio every time you filled up and save $30 to $50 a tank? Would you consider running straight bio if you made it yourself and it met YOUR standards? And what do you think your standards might be?
Morndenkainen 1 year ago
@Morndenkainen If you actually make bio-diesel correctly you can use that in your single tank strait.
13brotary 1 year ago
The old 6.9 and 7.3 is much more foregiving.
My best test mule is a 7211 Zetor farm tractor, single tank,up to 75% wvo/wmo, rest diesel. It starts well and clears up in about 5 minutes.
This expensive equipment to filter it makes little sense, what are you gaining? I have been settling my fuel and running thru a milk strainer, it is then allowed to settle some more. I draw it off with a pump held off the bottom. It sems to be worth the effort at this point.
MarcoAtlarge 1 year ago
Been watching your videos all morning, They are great presentations. Very realistic perspective.
qtotgirl 2 years ago
Search for a Fuel Pro, way better than that Recor.
studpuppy69 2 years ago
I like your informative videos powerstrokehelp!
lespaul369 2 years ago
That plugged fuel pick up is due to WVO usage. I do not use WVO but use properly processed biodiesel. Using WVO does not remove the glycerin or deal with the acids that are present. Processing WVO into biodiesel solves all of those problems.
spencnaz 2 years ago
Alot of people get Bio Diesel and Waste Veggie oil confused. Looks like your customer thought Bio-Diesel = pouring restaurant grease into the factory tank. Actual Bio Diesel requires chemical processing which preps it to be used in the factory tank, mixed in any proportion with #1 or #2 Diesel fuel.
You're right about it not being worth the effort at today's fuel prices. If the price doubles again it would be. Most puke'n'choke's know they're sitting on gold and charge accordingly.
mr3vil666 2 years ago
I wouldn't use oil from a puke n choke anyway. Their WVO titrates way way too high to make good quality biodiesel.
spencnaz 2 years ago
Hey Bill thanks for sending me the link .
This past weekend tried commercial Bio diesel B-5 for the first and last time . While towing our 11k trailer up a 7 % grade @ 7000 feet the turbo lost its boost power momentarily .
I think what they call a Turbo Fart ? Needless to say the 15 cents per gallon I saved buying Bio Diesel was not worth the aggravation .
becxlt 2 years ago
Suppository outta an eliphant!!! LOL!!! LOVE IT
azkcr 2 years ago
Thanks Bill I totaly agree
maddisonst124 2 years ago
bio fuel is for hippies anyways
cowboyup343 2 years ago
You'd be surprised who i see running the stuff. The guys that i have seen are most successful are the straight laced engineer types. It's not just for Hippies any more.
powerstrokehelp 2 years ago
Yeah tell that to the US Navy, they're the largest user of biodiesel.
spencnaz 2 years ago
Yeah, tell that to the US Navy.
spencnaz 2 years ago
@cowboyup343 Tell that to the US Navy, the largest user of biodiesel. This damage is due to running WVO isn't heated. Properly made biodiesel will not damage your engine. Newer engines are far far less tolerant of poorly made biodiesel. I've been making biodiesel for 5 years. I DID NOT USE BIODIESEL UNTIL I HAD MY PROCESS PERFECTED.
spencnaz 1 year ago
Very good video. I'm glad to finally see an intelligent and balanced voice on this whole veggie/alternative nonsense.
However, I wouldn't be so keen on advertising that you have/will run illegal fuels in your shop truck. The EPA is always looking for its next source of income.
Long live Spot!
Turbo617 2 years ago
Only diesel in there now. I was all just an experiment. It is good to know the PSD is truly a multi-fuel engine.
powerstrokehelp 2 years ago
wow i dont think that fuel was processed at all before that guy poured it in his truck
DieselDemon18 2 years ago
awsome video
maxpaul11 2 years ago
Great vid Bill; all your vids are fantastic. My problem is that your soooo far from Vancouver, how the heck am I gonna get my F550 regularly serviced by you instead of all these idiot mechanics up here that charge an arm and a leg and don't know diddly-squat.
iamthebattman 2 years ago
Thanks for always providing good info Bill. I think my 6L is far more healthy from watching all your vids.
chatrkat 2 years ago
i just shake my head when i hear somebody say you can just pour wvo in your tank and go. having worked on ships that burn heavy fuel at sea, i know that you have to heat and filter it well or it won't work. thanks for the visual evidence that your fuel system will get totally screwed if this isn't done right.
satchelh 2 years ago
Oh BTW: Roush is making Propane Ford trucks, I would like to know what you think about Propane powered cars.
Roush has many videos on there YouTube profile that are more or less advertisements, presenting the pros to making the switch.
Roushfan5 2 years ago
Fuck. We sold a 7.3L to a guy planing on putting bio fuel in it.
Roushfan5 2 years ago
Make sure he does it the correct way so he does not have these problems.
powerstrokehelp 2 years ago
Oh that was a year ago. Even if I had the ability to look over his shoulder like that we have lost any all all contact with him now.
Roushfan5 2 years ago
nice vid well explained and i just hate those idiots that put random crap in they fuel tank and then blame it on the engine when it fu-ksup, that its a crap engine and so on, but usualy it beacouse of them the owner for puting so much crap in there
klutchmaster0 2 years ago
How do you spell that filter? Is it Ray Core? Or different?
This sounds like something I would want to do for this truck im going to buy. Granted its an 85 f250 6.9. But the guy tells me the diesel in it is 6 years old. And yes I am going to drain it all for new. And when looking at everything that water seprater is bypassed. Yeah I know :( But the truck does run very well, doesnt smoke much at all. Ive Always wanted a diesel and i think this truck is really worth saving.
tom58c 2 years ago
Raycor
powerstrokehelp 2 years ago
Thanks Bill for the help. Its something I will have ti think about.
tom58c 2 years ago
this is something ive been curious about for a long time
dilauroj94 2 years ago
Excellent vid Bill!! Very interesting stuff, sounds like alot of the stuff ive read in Diesel Power mag as far as testing different oil based fuels in a diesel.
Im always suspicous of bio-diesel at pumps and from individuals who dable in making it. You just dont know the quality. Same with #2 diesel really. I dont trust alot of gas stations diesel. Most have dirty tanks, dont keep the tank full, dont move much fuel. My 6.0 only see's diesel fuel from a quality station that moves alot of fuel.
Xx69roadrunnerxX 2 years ago
Spot will rise again!!!!
BOBKB3NZX 2 years ago
She's risen, Just got back from New Orleans LA, towing a wrecked f-250.
powerstrokehelp 2 years ago
Nice, how did she feel?
BOBKB3NZX 2 years ago
Ran like a champ. Light oil consumption. Got 17.1 mpg on the way down and 14.0 on the way back. Probably get better as the new rings set in the bores a little better. No complaints for a motor built from extra parts.
powerstrokehelp 2 years ago
OH hell no, thats good for a quickie build up. decent mileage too! Did you run straight diesel or mixed fuels?
BOBKB3NZX 2 years ago
diesel
powerstrokehelp 2 years ago
damn good video Bill
sounds like you might be a little under the weather from your voice
BruceCountyFinest 2 years ago
Thanks for the info. It will definately come in handy for a friend of mine thats looking into getting a diesel truck and running used deep fryer oil from restaurants. Keep up the great videos.
sonyxploder 2 years ago