Fuel grade

[Ran440]

Just wondering what grade of gas everybody is using.

[spaner]

Hey Ran,

Up here in Canadacon (the big village),
We basically have the standard 87, the mid range 89, or the premium 91...

What you will need depends on a few parameters...

Ambient air temperature, timing advance, and boost parameters...

You know that I'm running 91, @ 14 deg BTDC and 7 PSI above ambient atmospheric...but,
If what you want to do is run the cheaper 87....as the ambient temperature increases, you will need to reduce you're timing advance. From 7 to 6, or so...

You'll do better in the winter, or just ad an additional cooling factor to the standard truck set-up...

Either, or, It all adds up to the fuel grade...

Octane costs cash...$$$


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