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Old 08-03-09, 09:27 PM
steelybill steelybill is offline
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Cadillac(s): '85 FWD fleetwood, '93 fleetwood Bro
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Re: 4100 engine change. Need input.

I agree with carnut. Just maintain it like it should be maintained. Like he said, the oil like diesel 15-40, and coolant maintenance, is what it takes to keep it going. The current oils for gas engines don't have the the anti-wear additives anymore, for flat-tappet cams, like diesel oil does