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Old 10-26-2012, 06:00 PM
Chrisoswald Chrisoswald is offline
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Don't hate me for asking 88 Prostar

So i acquired a 88 prostar over the summer. Love it. Putting her away for the winter and have been reading about zinc in the oil for older motors. The PO mentioned to me that I should use an oil with an adequate amount of zinc for my boat. Can someone recommend a brand and weight that fits the bill?
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Old 10-26-2012, 06:06 PM
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Quote:
Originally Posted by Chrisoswald View Post
So i acquired a 88 prostar over the summer. Love it. Putting her away for the winter and have been reading about zinc in the oil for older motors. The PO mentioned to me that I should use an oil with an adequate amount of zinc for my boat. Can someone recommend a brand and weight that fits the bill?
Rotella 10w40
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Old 10-26-2012, 06:14 PM
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I am not sure Rotella still has a ZDDP additive. I have been using STP OIL Treatment with ZDDP
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Old 10-26-2012, 06:15 PM
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Valvoline vr1 20w50 1400 ppm

Anything north of 1000 ppm is adequate.
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Last edited by j.mccreight@hotmail.com; 10-26-2012 at 06:39 PM.
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Old 10-26-2012, 06:19 PM
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JMann JMann is offline
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I use a standard oil of my choosing and put in a bottle of ZDDP additive. Or what ^^ said
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Old 10-26-2012, 06:59 PM
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Quote:
Originally Posted by j.mccreight@hotmail.com View Post
Valvoline vr1 20w50 1400 ppm

Anything north of 1000 ppm is adequate.
What he said ^^ plus I am pro-synthetic (oil discussion? bring it...lol...not really)

Synthetics hold up better in high temps - shear strength and flow. So Valvoline Synthetic VR1 20w50. With an older engine the water jacket ain't what it used to be...so the temps in the cylinders "may" getting a little hotter - so the synthetic will give you a bit more protection... if it's over kill on the spend...it's cheap insurance...plus it's a really cool blue color.

I would stay away from any motor honey like STP - even if it has ZDDP. I do put in Hyperlube...it was designed to be used in C&C machines for lubrication. Third party tests show it ain't snake oil... Thanks 03geetee for that find.

ok... I'm done pontificating...about oil..
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Old 10-26-2012, 09:47 PM
Chrisoswald Chrisoswald is offline
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So if the oil has zinc weight % of 0.121 does that mean 1200 ppm?
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Old 10-26-2012, 09:51 PM
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Originally Posted by mikeg205 View Post
What he said ^^ plus I am pro-synthetic (oil discussion? bring it...lol...not really)

Synthetics hold up better in high temps - shear strength and flow. So Valvoline Synthetic VR1 20w50. With an older engine the water jacket ain't what it used to be...so the temps in the cylinders "may" getting a little hotter - so the synthetic will give you a bit more protection... if it's over kill on the spend...it's cheap insurance...plus it's a really cool blue color.

I would stay away from any motor honey like STP - even if it has ZDDP. I do put in Hyperlube...it was designed to be used in C&C machines for lubrication. Third party tests show it ain't snake oil... Thanks 03geetee for that find.

ok... I'm done pontificating...about oil..


He speaks the troooooof! I use this with Rotella 15w/40 and my dinosaur still roars.

JTR
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Old 10-26-2012, 11:44 PM
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Quote:
Originally Posted by Chrisoswald View Post
So if the oil has zinc weight % of 0.121 does that mean 1200 ppm?
Short answer yes it does,
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Old 10-27-2012, 10:11 AM
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Quote:
Originally Posted by 03geetee View Post


He speaks the troooooof! I use this with Rotella 15w/40 and my dinosaur still roars.

JTR
Thread jack.... we should get a few bottles for the promotion of the product...

now back to our thread...
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