thats what I was thinking too. Can't have the inside cleaner than the outside!

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Jason
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I just used the Seafoam for 100 miles or so right before an oil change to break up and dissolve all of the gunk. Then change oil and filter.

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2007 Light Khaki 4x2 Sport
- Debadged - LTT CAI with Amsoil Filter - JVC HD Radio - Infinity BassLink
- Iggee Seat Covers - Black Moabs - 265/75-16 Cooper Discoverer ATP - 4.10's
- DIY Franky sitting at 23.75" - Al's 4.5 UCAs - Trimmed F&R Bumpers
- Removed Rear Sway Bar - Removed Rear Vibration Damper
- 75k miles so far...

The advantages of syn are:
-Better cold weather start up
-more shear resistant
-less prone to additive pack break down
With that being said, new conventional oils are so good, if you do frequent changes conventional will do great. As for me, I like syn regardless of cost.

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'06 3.7 sport 6 speed (long live manual tranny's)
tinted windows, cruise, midnight blue
Mopar roof rack
Royal Purple Synchromax in tranny
Royal Purple Maxgear in pumpkins
Full mopar skids, front diff collar
Future mods: Rock rails, B.F. Goodrich all terains. (In my dreams: Frankenlift)