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Motorcraft vs Amsoil vs Royal Purple Gear Oil

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Old 03-12-2006, 02:10 AM
biz4two's Avatar
biz4two
biz4two is offline
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Join Date: Sep 2003
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RP 75w140
I would recommend the RP 75w140 for the rear. If you have the LS...you will not need to add the extra friction modifier.

Just my .02

biz

________________________________
2003 F250 SD SC 142" XLT FX4 V10 Auto 4x4 3.73s
 
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