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pkats 10-29-2009 10:51 AM

Oil change for 3YM30 diesel engine
I am planning to change oil on my 3YM30 diesel engine. Manual says that I can use 10W-30 or 15W-40 oil and #20 or #30 oil for gear box. Can I just use regular oil? In the store I saw special oil just for diesel engines. Thank you.

Vasco 10-29-2009 10:56 AM

Use only diesel oil. This will be "C" rated (compression). Gasoline engines use the "S" rated (spark) oil. I use Shell Rotella.

theartfuldodger 10-29-2009 11:42 AM

Use 15W40 Rotella oil best kind, use it in my 3ym30, from day one.

pkats 10-29-2009 12:09 PM

Thank you for your responses. What about gearbox oil? I have KM2P-1 marine gear. Is regular #20 or #30 oil ok?

Vasco 10-29-2009 12:24 PM

Regular 30 weight oil is fine for the transmission if that's what the manual calls for.

pkats 10-29-2009 09:55 PM

Would you recommend 15W40 or 10W30 for this engine? I now the difference is vescosity, but still...

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