Anyone still running conventional?

Joined
Aug 14, 2025
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Oregon
Just curious.

Was doing a summer OCI of conventional 15w40 because my engine is too old to care and I'm a cheap son of a gun, but can't be bothered to consult the crystal ball to try and guess ambient temps during the next OCI anymore. Once my stock of conventional is gone it'll get 0w40/5w40 year round and I'll be done with conventional entirely.
 
almost any oil that is conventional blend nowadays.

I use delo 1300 which is a group II+ is that conventional?
 
Just curious.

Was doing a summer OCI of conventional 15w40 because my engine is too old to care and I'm a cheap son of a gun, but can't be bothered to consult the crystal ball to try and guess ambient temps during the next OCI anymore. Once my stock of conventional is gone it'll get 0w40/5w40 year round and I'll be done with conventional entirely.
Unless you have old PP oil or are running PAO or eater based oil everyone else is probably all running group 3 oils.
 
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