Do not put in more that 5% BioDiesel. B5 is the maximum allowed by VW in their new TDI engines. That said, research has shown that the best lubricity additive is biodiesel. Anything between B2 and B5 is better (lubricity wise) than any commercial additive I know of. If you have a reliable source for B2 to B5, this is what I would suggest running. Not everyplace has easy to find B5, if you can't find B2 to B5 - then a good lubricity additive is recommended (by me - not necessarily VW).Thanks for the welcome.
Curious, is putting Biodiesel better than putting diesel + additive?
Does this carry over to any "diy blending"? There is one station that has B20 near me: can I fill a couple gallons of B20 and then top off the rest of the tank with regular diesel 2?+1. If you can only find a good source of B99, just add 1 quart per tank and you'll be approx B2 final. Add the B99 prior to fill up (splash mix).
The OP lives in So. Cal. (USA). Canada has the same diesel fuel lubricity standards as does Europe. The USA does not! American fuel does not have to have lubricity as good as in Canada. Therefore what Petro-Canada says is mostly meaningless in California.don't worry too much about biodiesel if you can't find it. and about adding lubricity additives, here is something that is written from Petro-Canada (Suncor Energy) - look at #8:
Simply put, Yes. There is more than one way to get B5.doctorclark;32l41125 said:Does this carry over to any "diy blending"? There is one station that has B20 near me: can I fill a couple gallons of B20 and then top off the rest of the tank with regular diesel 2?
The text in bold above is why people feel compelled to improve the lubricity of diesel from the pump.ULSD should have minimum regulatory lubricity levels that should be sufficient for the needs of today's ULSD based vehicles, including those from International, MAC, Volvo, VW, BMW, Ford, Cummins, Mercedes Benz.
so why spend additional money for something that offers no empirical data from the engine manufacturers?
Emailed them earlier in the week and went for the first time yesterday evening to confirm and fill: they only have B20. It is very convenient though; thre is a ULSD pump immediately adjacent to the biodiesel pump, so splash mixing down to B5 is painless.I went to the station on El Cajon blvd a couple of months ago and B5 was the only thing they had available there. Something about the storage tank requirements were preventing them from having the B99 or B20. Do they have a better variety of fuels now? I've been commuting between Murrieta and San Diego (about 115 miles daily) and running around 47 mpg last few fill ups. I always add the diesel Kleen + Cetane Boost additive religiously since upon moving out to CA I immediately starting having IP issues and had to reseal it. Probably caused by the fuel requirements out here.