Jeep 4.0L Oil Change

[Petty]

Changed the oil in the Jeep Cherokee today, still using the Mopar Max Pro Oil, the gallon jug was a golden honey color but the two quarts were a dark copper color, happy with the Mopar oil but I am thinking of changing to the Amsoil XL to get down to two oil changes per year (I need the stinking starburst symbol), I still enjoy changing oil but I am getting older, I have considered PP, QS Torque Power & Mobil 1 but Amsoil is the only one that stands buy mileage and I use Amsoil Severe Gear and have been very impressed with it.

 

[cosynthetics]

I run the SSO in my wife's 4.0l but if you want the starburst then the XL is for you.

 

[KW]

The XL stuff would do well for you. I find that the 4.0's like the 10W40 grade the best. The 10W40 is just heavy enough to take care the the wrist pin rattle they have when cold.

 

[Steelers]

4.0 Jeeps like the older Ford 4.9 six like a heavier oil. Consider running a 15w-40 or since you live in MI a synthetic 5w-40. These oils, however, are not "energy conserving."

 

[Eddie]

Hmmmmmmm. Heaver than recomeded oil? My GC 4.0 was running great at 197,000 miles running 5w&10w30 Mobil 1 + PureOne or OEM oil filter during a 6-7,000 mile OCI. Maybe a 5w40 if I had lots of miles on the engine.