mercruiser 525 sc

04-11-2003, 06:29 PM

michaelsformula

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mercruiser 525 sc

hello have a 99 525 sc what type of oil should I use in the blower? previous owner thought but was not sure about using 30 weight any input would be helpful thanks all !,Michael

04-11-2003, 06:40 PM

cuda

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I don't have an answer to your question, but where is the pic of Michael's Formula in the Formula section?

04-12-2003, 01:05 AM

Griff

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Use the Merc High Performance Gear lube--same stuff as the outdrive or an equivalent 80-90wt gear lube.

04-13-2003, 10:26 PM

michaelsformula

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mercruiser 525 sc

really 80-90 weight gear oil in the blower ?should i use a synthetic oil ?

04-14-2003, 08:07 AM

HiPerf2000

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80-90w is a good wieght to use....you are only lubbing the gears that are turning the 2 rotary shafts.

I always use synthetic in my blower. The merc hi-perf lube is synthetic. Use that or a Mobil 1 equivilent.