More Miles per Gallon (400 miles per tank)!!!!

[TiAgX5]

Originally Posted by TerminatorX5

I just made some interesting observation:

My mileage consumption has improved - when I bought the car, i saw the MPG from 12 to 17 with occassional 19 MPG... mostly it was in the 16 MPG...

Right now I am observing more of the 19 MPG on a steady basis, starting about from June on... I do not know if I should contribute this improvement to change in driving habits (not really, i still drive the same), change in fuel composition (but last summer there was not such a difference), or the fact that I did a few oil changes rather with short interval (approx. 5000 miles apart) along with using Liqu-Molly engine flush before the oil change and then dumping in 12 fl.oz. of AUTO-RX into the engine, and also replacing the torn CCV membranes, in effort to reduce the blue smoke... I do get the blue smoke on EXTENDED idling, but not on the short ones, like the traffic signals or the traffic jams that are moving... which is also an improvement.

what do you think?

As tires wear down you have more revs per mile, the OBC does not correct for tire wear. GPS logging is the most accurate way to get true MPG.