Factory "can be" black with white lettering.
The AC orange and blue "can be" dealer installed or OTC.
Picture from Pat's link (above).
Attachments
Oil Canister AC 01.jpg (32.33 KB, 59 downloads)


"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."