Muffler mayhem

[twistedsymphony]

The LS series motors are exceptionally efficient. ... not to mention the T-56 transmission is setup for fuel economy as well. it's an exceptional motor and transmission combo in terms of MPG...

the VX's 3.5L is horribly inefficient when compared to other motors of it's size... you're comparing an motor that is way above average for MPG and pitting it agains a motor that is way below average for MPG, it's really a bad comparison.

the VX is heavy... but it's not THAT bad, really the lack of fuel economy comes from just a poorly designed motor attached to an abysmal automatic transmission.

the AWD system attached to tall, wide, and heavy mud tires isn't doing you any favors either.

[blacksambo]

Your modified VX is suffering from the classic performance=lower mileage syndrome. Anything you do to boost performance eats away at OEM equipped mileage. My wife and I drive stock VX '99's daily and get 20mpg aveage, no problem inspite of 10 % ethanoyl. Yes, we use Lucas gas treatment to compensate for the ethanoyl mileage penalty. Go OEM and your problem will be alleviated, it's that simple.

[VCross007]

looks like im going to have to do that. I'll miss the growl of the motor, and the guy's gonna charge me like $80 to replace the muffler with the oem. oh well, it was fun while it lasted. Anyone intrested in buying an 01 kaiser?