how the f do i get engine know after an oil change?

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Jan 19, 2012 | 01:14 PM

#61

hawaiian808

Seasoned Member

Joined: Nov 2011

Posts: 357

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From: pa!

Model: Cherokee

Also if I remember hm m1 is actually a higher blend of "dino oil" than regular because it suspends the additive package better, in am engine with loose tolerances that is important

Visit bob is the oil guy forums and read up on oil

Does it really matter they market a full synth? No not really, it works and keep your oil changes with the top 3 and it will work the way you want it, dino oil worked for decades, it will still work blended,

Last edited by hawaiian808; Jan 19, 2012 at 01:20 PM.

Jan 19, 2012 | 03:35 PM

#62

irs009

Member

Joined: Aug 2010

Posts: 127

Likes: 0

From: Des Moines, IA

Year: 2001

Model: Cherokee

Engine: 4.0

The sound recording you posted sounds like a bad bearing that is turned by the serpentine belt.

Jan 19, 2012 | 05:20 PM

#63

jth877

Member

Joined: Sep 2009

Posts: 150

Likes: 0

From: Albany/Saratoga, NY

Year: 1999 Stone White

Model: Cherokee

Engine: 4.0

I hate snake oil. No need for it.

I use a mopar filter and 5w-30 rotella syn. All avialible at walmart and probably cheaper than Napa's dino oil. You need a decent phosphorus/zinc content as well, I don't know offhand what Napa's house brand oil has.

If your lifters are noisy check how tight they are. They should be at 19ft/lb , IIRC.