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#1
03-31-2009, 05:17 PM
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oil for 87 prostar
I have been using rotella t for the 2 years I have owned the boat, but I remember reading somewhere that they stopped putting in an additive that is needed for the flat tappet cam in my engine. Im not entirely sure if this is true, but what engine oil would be best for my engine? 351 indmar, non powerslot
thanks 
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#2
03-31-2009, 07:09 PM
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If you want to stick to a multi, Valvoline VR1 20W-50 seems to be the current best choice. It has the high level of ZDDP you need for the flat tappet engine. The Rotella still has the ZDDP in the straight 30 and 40 weights as well. For a very complete discussion, check out CorrectCraftFan.com and do a search for either the VR1, Rotella or ZDDP oil.....lots of tech talk over there.
__________________
1991 ProStar 190—Acme 475, GT40-P heads, Edelbrock Performer intake, Mallory YLM Ignition The world is full of youth—what we need is a fountain of smart!
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#3
04-01-2009, 12:45 PM
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I'm close to your latitude and run the 20W50 VR1. But given our temperatures in Texas, you'd probably be fine with the straight 40 as well.
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Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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#4
04-01-2009, 01:09 PM
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I've always run Valvoline VR1 40 weight in our '89,
Attachment 45674
__________________
Charter Member Number 1 Quote: 2RLAKE, At some point in time people need to wake up, remove their cranial intrusion into their own rectal areas, and take responsibility for their own actions. Last edited by TMCNo1; 06-15-2009 at 08:25 PM.
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#5
04-01-2009, 01:45 PM
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Quote:
__________________
go go go!
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#6
04-01-2009, 02:24 PM
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Quote:
__________________
Previous: 1993 Prostar 205 Red 1998 Closed Bow Ski Boat, Ford 351, 310 hp, Acme 4 blade, Perfect Pass SG. FAQ Tyler Ski Club To me, this forum is about love of inboard boats. It is about the sharing of information and, on a good day, some humor. It is not about post count, brand of boat, or any other superfluous labels that lend themselves to a false sense of superiority. Please, respect one another, try to pass on accurate information, and keep your eye on the ball.
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#7
04-01-2009, 02:25 PM
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Quote:
__________________
go go go!
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#8
10-28-2009, 08:28 PM
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Thanks that link was full of good opinions, anyone heard of Royal purple? hows that stuff, I heard that Amsoil is more expensive but good, its almost $10 a quart in that neighborhood.
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