silverRS4

Scott, I thought you were done with 05, stop wasting keystrokes

RI A6

Thanks for the reminder.

ArthurPE

let's say after 5000 miles the volume is 3% gas...quite high, but for discussions sake, let's say 3%

and if you lost 1/2 qt on the dipstick...
only 3% of that is gas, 97% is oil...
so for all practical purposes any loss on a dipstick is oil, not really impacted by gas dilution...

RI A6

Based on what I've seen in oil analysis with this engine, the oil loss seems to accelerate with fuel dilution and mileage on oil. Some owners using Mobil 1 0W40 have reported that they had little to no dipstick loss, and then suddenly experienced a quick loss of 1 quart or more. This seems to occur after 3K more more miles after then oil change, and might be related to the amount of fuel dilution, since average dilution goes up over mileage. I believe this to be a result of the fuel breaking down some of the highly volatile oil components.

daveak05

so, if that's wasted keystrokes, not my problem.

daveak05

A bit excessive for the oil to be doing all this in 2k miles after a thorough cleaning, don't you think?

What about driving habits, cold operation, high compression ratio, cooler combustion temps?...natural combustion byproduct?

nyet

i agree you shouldn't see significant buildup after only 2k miles

daveak05

I just think there are other likely sources besides oil that some here choose to ignore

daveak05

Something is definitely going on for this excessive carbon buildup so quickly besides explaining it by telling people to use a better oil, LOL.

daveak05

or are they asking about the gas you're using and you're driving habits?