Thread: M104 sudden lifter(?) noise
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Old 09-20-2010, 08:21 AM
Ferdman Ferdman is offline
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Join Date: Aug 2002
Location: Southeastern PA
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gmercoleza, original factory fill in the 104 engines was 15W40 mineral oil so the Delo 400 should be fine, although I thought Delo was for diesel engines.

FWIW, I run Mobil 1 15W50 in our 104 engines year-round with no problem, and have for the last 10 years. Change oil & filter every 7,500 miles per the Maintenance Booklet.
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