VX Fuel

[garfull]

thanks for the tips. ill do some research on how to do all those and see if i can get t done myself.

hey gar,
since you have just gotten your vx, (welcome to the family) you probably should make it your own by doing some maintanance. off the top of my head, new pcv valve, clean the egr, and the "tube" (do a search) and clean the trottle body, clean iac. these are things i do, and others i think, when im getting bad gas mileage. there may be some things ive left out, but do a search on poor gas mileage, youll catch on.
congrads, and welcome
david

[geshaw30]

Correct you are zlilk...increasing your fuel grade past recommended makes no difference what so ever. Save your dimes & nickels people and stick to what the manual recommends.

Here's another little tid bit of information- avoid gassing up when a fuel delivery truck is in the process of re-stocking tanks. It's the same line of thought as burning your VX tank down to near empty. You're getting sludge. In the case of your local "Exxon/Shell/BP 24hr Megaplex" the new fuel being pumped into the holding tanks is kicking up the crap settled down in the bottom. That little pearl came from a friendly local petro engineer despite the fact that the delivery guy will tell you otherwise.
________
Extreme Q Vaporizer

[WILLY]

My manual say to use 87 octane (or higher),I have been told the higher the octane the better it burns which makes the motor run better and less sluggish.I duno for sure but i use 93 octane anyway,to me a few pennies is no big deal.and its a good thing there are inline filters on the fuel pumps and on my vehicles cause i would run out of fuel if i didn't fuel up when the stations are getting fresh fuel,seems like there always getting new fuel lol.

[Clyde]

I Use 93 Octane With Power Mode On All The Time And I Get The Best Mileage This Way.and The Vx Performs Much Better.

I'm with Willy on the power mode on all the time. I have noticed the same thing....that my gas mileage improves when I leave the power mode on. Although I differ with Willy in that I use regular 87 octane. I can't tell a difference by using the higher octane in my VX.

[Y33TREKker]

There are too many variables involved to be able to say what will provide the best mileage for everyone; driving style, local terrain, local climate, wheels and tires, overall vehicle weight, engine configuration (super-charged), etc, so what ends up providing the best mileage for each different owner will just be a matter of trial and error .

The stock compression ratio for the VX's 3.5L is 9.1:1, so anything above 87-89 octane really wouldn't be necessary/beneficial. Higher octane fuels burn slower so that they don't pre-detonate in higher compression engines, like most motorcycles that run around 10:1 or 11:1. That's usually what the fuel octane recommendations listed in the vehicle owners' manual are based on.

Depending on when it was changed last, you might also try replacing the air filter when checking all the other maintenance items listed already.

[PHO2GR4]

As dumb as it sounds, the VX roof racks also decrease mileage.

Wahhhhhhhh!

[marcosv6]

You are in California whichs uses alcohol as an additive to keep the air clean. What they don't tell you is that alcohol is less efficient than gasoline. Therefore the air is cleaner but you have to burn more to get that result. Kind of stupid?

Go up to Oregon and fill up, you will notice the difference!

The odometer is calibrated to read with the original diameter tires. If you have change that diameter, your mpg will change also. Bigger tire= lower odometer reading=lower mpg.

Don