Get a free engine diagnostic tool when you buy 5 quarts of Mobil 1™ at NAPA Auto Parts stores.
Check your engine warning lights quickly and easily with your free engine diagnostic tool. This free tool is yours when you purchase of five quarts or more of Mobil 1™ motor oil at participating NAPA Auto Parts stores*. Get protection for the road ahead with America’s leading synthetic motor oil brand at retail**. Offer valid July 1 – July 31, 2020.
*While supplies last
**Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ 52 weeks ending April 4, 2020