I have been chasing / using bio-diesel for a few yrs .
I have seen some reports of problems with the WVO/SVO [ waste vegi oil / straight vegi oil ] systems .
So the questions is , updates on using non processed vegi oils , vs. bio-diesel .
Thanks John

 

From what I can tell unless your car is set up as a WVO system you will encounter problems with it - esp. in colder climates. The problem stems from purity, flow rates, consistancy and your ability to filter it properly prior to it reaching the injection pump.

BIO fuels on the other hand have an incredible way of cleaning things out - particularly a old fuel tank - so, with in adequate filtering of the cars system you will cause damage there too. Best bet is to install a series of rating micro filters - say a 18, a 12 and a 8 or a 6 in that order to the pump. I know many people that run VW's on anything from B10 to B90 without any issue.

 

I've heard the opposite. More problems with Bio vs WVO. I started a thread in the fuels area to try and come up with some answers from users.

https://www.dieselbombers.com/altern...bio-veggi.html

 

Really... Not up here. I run B20 in my cars without issue. I have used B80 in the 2004.5 PD without issue as well.

 

I was asking about the damage done [ by either ] but have been involved in bio for some time , have accumulated a lot of studies , gov. , university , military , emissions ect.
I was under the impression you were in / around the VW repair side of things , so I was looking to see what has been coming in with alt fuel issues , to pass on for those that ask .
Now you have made for more questions than answers , with an ever growing amount of data on alt fuels , the statement " more problems with bio vs wvo , requires details , because that is the opposite of a lot of info I have seen .
Any details ?
Thanks John

 

The issues we've seen have been from B100, eating/damaging the pump seals and on one, even the injectors were leaking.

 

Ok heres one for ya Tye or anyone else....

I went to Cummins today and got to talking to a guy with a beetle in the parking lot. He was telling me he had his Egr blocked off. Has anoyne done this?

 

You can do that but your economy drops off the planet - to the point of less than HALF of what you would expect to get. Personally, take it off and clean it every once and a while is better. He probably doesn't drive it like it is stoilen either I'd imagine. The TDI must be driven at 3000+ rpm shift points or it starts to go south quickly.

 

He claimed he was still getting 55 mpg...

So, how long does it take to pull apart, clean and reinstall?

 

You mean it starts to clog if you dont drive it hard?


Sorry, not up on the left coast lingo...