Thank yu Mitchell. I'd be grateful for more info. the engine has just been completely rebuilt, runs like brand new. The oil pressure reading on the dash cluster is right where it should be until after about a 20 minute drive when the engine is hot, it goes to extreme low. No noises or performance issues are evident when the low reading is on. Thank yu Mitchell. I'd be grateful for more info. the engine has just been completely rebuilt, runs like brand new. The oil pressure reading on the dash cluster is right where it should be until after about a 20 minute drive when the engine is hot, it goes to extreme low. No noises or performance issues are evident when the low reading is on.

oil has lower pressure do me a favor replace oil with 20/50 and get back with me oil has lower pressure do me a favor replace oil with 20/50 and get back with me