What kinda gasoline you take?

[jimbo]

I usually put regular in my VX but every now and then I've tried premium thinking it was "better", and nothing is too good for my baby.

My VX always seemed like it ran a little better, peppier, when I put a full tank of El-Premo in; but I guess that is just my imagination.

No sense in wasting $$$$$$$ , our gas expenditure is high enough already.

Our other car, a VR4, requires premium, and certainly sucks up the gas, slurp-slurp

[Heraclid]

I was running 89 octane mid-grade all the time until just the last few tanks and was happy with it. However, it sure seems like my VX is actually running a bit better on 87 octane now and I've made no other changes to cause that. Plus the weather is getting warmer which usually seems to take the pep down just a tad, but the VX seems slightly peppier. Not a huge difference mind you, but I think 87 may be better for the non-SC'ed folks. The only difference I really felt with 89 octane was right after fill-up, which had nothing to do with the grade of gas. I think the fact that it has a full tank makes it a little peppier for some reason, but I don't know why. Maybe the fuel pump isn't working as hard then and/or the fuel pressure is increased?

[kpaske]

I've run 87 almost exclusively since I bought my VX new in '99. On the few occassions I've experimented with higher octanes, I didn't notice any better performance and actually experienced a decrease in gas mileage. I have running into knocking a bit, especially as my VX has started to get a bit older (I'm at 90k+ miles), but the brand of gas I buy seems to make a difference, so I try to avoid certain brands (ARCO in particular seems to run pretty poorly).