Theo,
So I should get my cat 'tuned' on tank of 98 gas - then see what
happens when I go to regular (89) I will try it out and see how it goes
At 01:41 PM 1/11/2007, Theo Smit wrote:
>It's a fact that running an engine with the ignition timing retarded from
>its optimal point produces higher exhaust temperatures, as well as reducing
>the power output. Therefore, if you retard the timing in order to avoid
>pinging when using regular gasoline, then you will get the situation that
>your author describes.
>
>My own experience (on a fuel-injected Toyota Corolla GT-S) was that running
>regular gas gave higher mileage than running premium, on back-to-back
>tankfuls. In either case I flogged the car fairly vigorously. The car
>includes knock sensors and computer controlled timing which should allow for
>automatic optimization (to the knock limit) of poor gasoline usage. I don't
>know offhand how long it would take the system to stabilize at a new timing
>setting (especially when going from 'bad' gas to 'good'). This engine was
>not designed for exclusive use of premium fuel, so it should have been a
>fair comparison.
>
>Theo
Regards
Barrie
Barrie Robinson
(705) 721-9060
http://www.britishv8.org/MG/BarrieRobinson.htm
///
/// mgb-v8@autox.team.net mailing list
///
|