View Single Post
Old 08-25-2015, 07:47 PM   #6 (permalink)
Master EcoModder
101Volts's Avatar
Join Date: Dec 2012
Location: Pennsylvania
Posts: 502

Woody - '90 Mercury Grand Marquis Wagon LS
Last 3: 19.57 mpg (US)

Brick - '99 Chevrolet K2500 Suburban LS
Last 3: 12.94 mpg (US)

M. C. - '01 Chevrolet Impala Base
90 day: 18.92 mpg (US)

R. J. - '05 Ford Explorer 4wd
90 day: 17.88 mpg (US)
Thanks: 930
Thanked 34 Times in 28 Posts
Originally Posted by Miller88 View Post
I don't understand some people's afflictions with overly heavy oil. Guess that's why I am a member at bob is the oil guy.

For what it's worth, a friend of mine has a 1990 Jeep 4.0. It plugged the oil pump and he drove it home with the bottom end knocking *and* the lifters clacking away. We cleaned it up and suddenly it leaks oil pretty bad now that the oil pump is actually pumping.

The engine was whisper quiet, though, after we fixed the oil pump. Until we dumped in 20w-50 to slow the leak. It sounded worse than my 2000 with either a broken piston or a bad lifter.

My Jeep 4.0 is actually a hair quieter on 5w-20 than anything else.
Reason why I wanted to try this is out of hoping it would stop using up oil as fast. On longer trips it certainly at least seemed to use oil a bit excessively.

  Reply With Quote