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1990 Silverado MPG Improvement?

Tiny
NINETY SILVERADO
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
I've got a 1990 Silverado with the 350 V8 which has over 230,000 miles on it. It runs pretty good, but it returns about 10-12 mpg. So i'm wondering, what can I do to improve the fuel economy the most? I don't want to spend much, I'm just wondering, what would make the most noticeable difference?
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Sunday, April 10th, 2011 AT 4:41 AM

1 Reply

Tiny
PROTECH1980
  • MEMBER
  • 901 POSTS
Thats about what your gonna get out of that truck for gas mileage, I drive a 96 suburban with 170,000k and hover in that range, make sure the tune up is good(plugs, wires, pcv valve, cap and rotor fuel filter), tires are properly inflated, and the 02 sensor is working properly, and make sure the engine can breathe ie. Air filter is clean.
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Sunday, April 10th, 2011 AT 4:50 AM

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