Quote:
Originally Posted by JWALTON
mobil 1 synthetic 5w-30 an ac filter
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Many of the Delco p/n's have changed and are now cheapies. I bought up old stock for my trucks but we aren't even using the new ones in my shop. We talked to the Delco reps and did cutaways to examine the quality.
The O'Reilly's house brand Microguard are made by WIX and high quality.