2002 Chevy Tahoe oil use

2002 CHEVROLET TAHOE
100,000 MILES • V8 • 4WD • AUTOMATIC
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VIC9SMITH
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  • 1 POST
I have just taken a long road trip and notice that when I drive 65 mph or slower, all is well with the oil level. However, when I set the cruise control on 75 mph or faster, the oil level on the dipstick declines at a rate of about 1/8 quart per 100 miles traveled.

This sounds crazy to me and I've been questioning how this could be, but I'm pretty sure I've documented this phenomenon twice.

Any ideas? And thank you.
Apr 26, 2008 at 1:58 PM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
Hi there,

I would do an engine service first, and do a general oil consumption test, that is with the oil level at full, drive for a week or so and re check, measure what you have to add and report back your findings.

Mark Mhpautos)
Apr 26, 2008 at 8:48 PM
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