2002 Chevy Tahoe oil use

Tiny
VIC9SMITH
  • MEMBER
  • 2002 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
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.
Saturday, April 26th, 2008 AT 1:58 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
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)
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Saturday, April 26th, 2008 AT 8:48 PM

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