Thread: Observation: M103's like Rotella 5w40 Synthetic diesel oil
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Old 03-07-2009, 03:09 PM
S-Class Guru S-Class Guru is offline
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Join Date: Jan 2003
Location: Dallas
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Yeah, my dealer out in hot West Texas put Kendall 15-50 in all their cars back in the early 90's. I switched to 10-40 in '93, and it seems ok so far.

DG
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