Not sure on how to get the 1st page to come up , thats where the pictures are .

http://forums.tdiclub.com/showthread...=1#post1830478

 

Think I'll stick to biodiesel
Pictures here http://forums.tdiclub.com/showthread.php?t=186108

 

WOW, forget about the WVO. I will stick with filter waist oil, or bio

 

Yeah, there are horror stories out there concerning WVO and biodiesel (yes, that stuff too). There are also people who have been running 70,000+ miles on WVO, no problems. I agree, 70,000 is not long term, but it is a start. I have 20,000+ so far and I am still going strong. I have my oil checked @ Blackstone and all returns have been positive. Can't complain.

 

I got 20,000 plus on wvo.

There are plenty of people have problems on #2, and ulsd....There are a lot of variables that could effect how the conversion goes.

 

None of that gum on his valves was from WVO. It was a direct injection system. Only air is suppose to pass over them valves. the first turbo did all the damage and it escalated from there. The crud is oil blow by from the ccv.

 

I have over 150K miles logged on WVO. 100% in the summer, blends in winter. So far, so good...
I saw the same post reference over on the mercedesshop forum. I thought something was really "F"ed up when I saw the pics.
We also have a few 617 MB diesels and a 1.6L na VW running around on wvo with no problems.

 

vw tdis are notorious for that crud on the valves.... its caused by the egr and crankcase blow by, combine some soot and some oil and you choke the intakes full of that on them. block the egr when they are new and vent the crankcase breather to the ground and you'll have no problems.


another thing i think that helps on our trucks is that they see hotter egts which i think helps to clean them out so to speak.

i've been burning wvo for 30k now with no issues and i just upgraded my injectors to 215hp injectors and my stock 180's with 130k on them (30k of wvo) looked great.

 

I rebuilt a lot of gas & diesel with build up on the intakes , and most did not have an EGR .
There are so many variables here its hard to tell , whats going on .
There is a good thread on Northwest bombers site , with Don M. showing some injector issues , but again so many variables , & lack of upfront info , these stories are just heads up , do not jump in with both feet without your own research , and accepting the costs of decisions .
I found far too many stories / info to do the non processed bio , & even then depending on what fuel system , it can ruin your day/week .

 

Not that I could ever afford nor have all the technical skills to do it....

I will use pump diesel with some added good stuff in MODERATION!

I WOULD use BioD if it comes to my local station, but perhaps AGAIN in moderation.

 

Well, you all make some good points about the vw, maybee not being from the wvo. I was looking into buying a vw, but after a little research, I am not sure I would want one. They shore do not appear to be as tough as the cummins.

 

The new ones dont seem to be, but I am on my second old little rabbit. These engines seem to run for ever. They get real noisy and rattly but I personaly had one with over 350000 and have seen ones with more. Not to mention 40+ MPG

 

Our Jetta wagon 5sp is going very strong @81,000. Nothing but diesel, oil and water so far. I add about 3 gal of SVO to the diesel tank. Best car I have ever had, gotta admit, better than my truck, which I call my automotive $ black hole, by a mile.

 

I've owned & worked on them for yrs , I have not seen an other diesel , in a small car that is available in the US , that is regularly available , parts , service ect , just like any thing there are bad & good yrs to look for , do a lot of reading on this site to help ,
http://www.tdiclub.com/ .

 

Id say the galling in the cylinder was likely a debris problem with the failed turbo. The turbo looks like it inhaled something solid and it bounced around and bent the fins. The crud on the valves doesnt sound like WVO either.. the inlet valves are closed when injection occurs. The injectors would get crudded up before the valves.
What does worry me are those failures where folks show the injection pump guts and they are covered in rust. Its hard to get all the water out and the tolerances are tight in there. Oil contamination via blowby and stuck injectors worries me more.
Id say WVO is safe if you:
filter to 5micron absolute, dewater
do regular oil analysis or run frequent changes like 2 or 3k each.
heat the oil to 140F or so pre-injection and only on a hot motor.
have an old motor with mechanical pump, lower injection pressures and no complex emissions crapola like EGR.
maybe limit use to highway or tow driving where the motor is kept hot.

Lots of horror stories out there but I dont see the risk if its done right.