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View Full Version : 1997 Prostar 190 LT1


bmeth11
06-23-2008, 12:26 AM
Wanting the TT advice on oil choice. Am going to be changing oil this week on the boat and wondering what motor oil everyone would recommend. Thx in advance...

Ben

erkoehler
06-23-2008, 12:40 AM
Indmar suggests a 15w40

Ben
06-23-2008, 07:03 AM
Indmar suggests a 15w40

That's what I use for the same motor. There are many threads on here relating to your question, try a quick search, or I'm sure someone will post links...

bmeth11
06-23-2008, 09:35 AM
just bumping up...

Chicago190
06-23-2008, 10:22 AM
just bumping up...

Any heavy duty/diesel/marine 15w40 should do, like Shell Rotella. I believe the Valvoline VR1 20w50 is popular for the LT1 engine as well.

bmeth11
06-23-2008, 10:49 AM
Thanks for the input... I went with the Valvoline VR-1 20w50...