I changed the oil in my '51 and every time I start the truck, the oil gauge gets pegged at
60lbs. After the engine gets nice and warm, it starts operating as normal. I'm using 20-40 oil. It stays pegged until the oil gets real hot. Whats going on? Do I need to go to a 10-40? Cecil........

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1946 Chevy 1/2-Ton
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