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i was just given a 1988 chevrolet dually. the engine was rebuilt 3 years ago and it is a 454. can anyone tell me how many quarts of oil it uses? can someone tell me what weight of oil also. some say 10w30 while others say 15w40. the gm dealer doesn't seem to sure. thanks in advance.:help:
 

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Eagle Eyes
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I believe capacity is 6.5Liters/7 quarts with the filter for the 454 engine. also 10w30 is preferred for 0F-100F+ for lower then 0F use 5w30. 15w40 is okay to use 15F and up.

sometimes the dipstick has the information on it but this should be good for you, good luck.
 
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