21.6 mpg on my '94 S15 v6

[chembrad]

I just took a trip down the central valley in California. Before I left I had the 225-75-R15s replaced with 205-75-R15s, popped in some new platinum plugs, new wires, changed the oil, and flushed the raddy. I guess that means a basic tune-up...

On my trip I averaged 21.6 mpg. This was up from my previous 19 mpg average in normal highway driving. Perhaps I shouldn't get too excited but hey, simple pleasures for simple minds.

[BlazerLT]

what is the stock tire size for your truck?

[Smokee]

Hey, with gas costing what it does, you should be excited. When it's $3 a gallon this summer, you'll REALLY be stoked!

[BlazerLT]

We just have to wonder if he factored in the change in tire size which would affect the miles driven.

[chembrad]

stock tires are the 205-75-R15 that I had installed on the truck.

The 225-75-R15 were considered "plus 0" oversize (see America's Tire Co. ).

And regarding the price of gas: we appear to be near the peak of price for the next two years or so (barring unforseen events).