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460 oil grade

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Old Oct 5, 2004 | 05:53 AM
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Question 460 oil grade

Just got a 1991 460 @ 37,000m in a f53 (motorhome) chassis with a GVWR of 17,000lbs. Live in New England. Frequently travel to to Alabama. Looking for the best grade and type (dino, synthetic, or blend) of oil to keep this engine running good. Any suggestions and basis?
 
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Old Oct 5, 2004 | 06:29 AM
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Valvoline 10-40 holds up real well; used it in my 460 in F250 4X4 Camper Special. After 155,000 still ran like new, used no oil and great oil pressure, inside of motor clean as a pin.
 
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Old Oct 5, 2004 | 01:29 PM
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If you switch to synthetic, you might develop some leaks, as synthetic will clean your motor out real good. The gunk is sometimes what stops leaks. With 37k, you might or might not have a problem. Synthetic is better for the motor, though.
 
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Old Oct 6, 2004 | 09:52 AM
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There is a controversy over synthetic oil and leaks. Some people say it causes leaks, the oil companies say it leaks better through existing leaks. I wouldn't let it stop me from using it.

What I do is I use dino oil with one quart of synthetic for the additive value. Good dino is probably all you need.

My daily driver in New England gets synthetic for the daily cold starts. On a -20° morning it pays for itself.
 
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Old Oct 7, 2004 | 03:19 AM
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I use Castrol Syntec blend in mine. 10W-30. Works real well, 90K and still going.

Frank
 
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