View Single Post
Old 06-30-2008, 01:32 AM   #7 (permalink)
cfg83
Pokémoderator
 
cfg83's Avatar
 
Join Date: Dec 2007
Location: Southern California
Posts: 5,864

1999 Saturn SW2 - '99 Saturn SW2 Wagon
Team Saturn
90 day: 40.49 mpg (US)
Thanks: 439
Thanked 530 Times in 356 Posts
azlar -

Quote:
Originally Posted by azlar View Post
cfg83,

If you're getting 10 inches of mercury, either your engine is sick, or it's a bad vacuum source. Should be getting 15-18 at idle.

Is the needle steady? Does it bounce up and down, or slowly fluctuate? This gauge is a great indicator of both engine health and economy. Check a service manual or on-line reference for details about the readings.

The boost side is a waste of money, unless you have a turbocharger. Not a popular ecomod option...

I've run that gauge for 20 years and it's about the best fuel efficiency meter there is (for ICE).
Thanks for the info. The needle is rock-steady so I am hoping it's a bad source. I'll do some homework and see what's up.

CarloSW2
__________________

What's your EPA MPG? Go Here and find out!
American Solar Energy Society
  Reply With Quote