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Well, how old is it, how many miles are on it, and what weight oil are you using now? My 1991 with 274,000 miles using 5w30, runs about 40psi cruising, and 20 at idle. If I use 10w40, it rus 45 to 50 cruising, and 35 to 40 at idle.
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∙ 15y ago
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