Napa batteries are manufactured by Deka I believe, used to be Interstate. Their oil is identical to Valvoline (just branded differently), and all their filters are by Wix. Don't ask how I know XD

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth