Originally Posted by parish8

i have used alot of xylene, probably 100gallons or so thru my last truck and i have 10gallons here today for the dyno and track. i mix it at 30% or so and add some lube, i am going to use marval mystery oil from now on i think.

i did kill a couple of stock 02's but they had 50k on them and didn't die for a long time, like 3+months of using the stuff every weekend, the wideband never died.

it works well, i was only able to run 6-7psi on 92 octane and with the xylene mix i was able to run 9psi all day long, i tried an 11psi pully and got a little knock so maybe 10 would have been ok.

i am thinking about ditching the factory 02's all together and running some c12 or whatever that really good gas is, i will still kill the wideband and that thing is expensive but i think i might try it to see how long the sensor lasts, i hear that fuel just kicks ***.

Originally Posted by parish8

i fill my truck to a little under 1/2 tank on the gauge and then dump in 5 gallons of xylene. that is close to 30% mix.