A small amount is normal. It is not exhaust. It is blowby. It is compression that leaks by the piston rings. If it is excessive it is an indication you have worn out piston rings. If it is puffing you could have a burn't piston. If the oil is thined out from needing changing or poluted from gas it will also cause this. Sometimes a heavier viscosity oil will help.


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
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