Amsoil or Royal Purple - Jeep Commander Forums: Jeep Commander Forum
Regular Service / Maintenance This section contains discussion about regular service and maintenance (upkeep) of your Jeep Commander

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post #1 of 1 (permalink) Old 07-30-2017, 03:04 PM Thread Starter
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Join Date: Jun 2017
Location: Fowler, Ohio
Own a Commander?: Yes
Model year: 2008
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
If 4WD - system: QT-II
Current Mileage: 147,000
Posts: 100
Amsoil or Royal Purple

Well I've decided to switch to synthetic on my next oil change. Now only thing I need to do is decide which one of these two. RP HPS is cheaper than Amsoil Signature and I can go right down to the Poop Boys and buy RP right off the shelf. My question is are both of these oils group IV using full synthetic base am I correct in assuming this? I have already bought some RP oil filters from Pep Boys now I just need to buy some oil.


08 Hemi Commander, QT2 diffs boo!, 2 inch lift, 265/70/17 Michelin donuts, and it even has the silent MYGIG radio option too this things almost loaded.

Last edited by oleblu72; 07-30-2017 at 03:08 PM.
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