across 4 different vehicles over the past ~10 years, although I think the "natural gas" base is more recent. Walmart usually has it stocked in all the weights I need in 5qt jugs, so it's convenient and economical. It's become my go-to, with Mobil 1 being my second choice if the weight I need is out of stock. -1998 Civic: took it from ~125k to ~225k between early 2010 and late 2014 -2013 F150 Ecoboost: Took it from 40k in 2014 to 123k (currently). Did a valve cover gasket the other month and the internals look squeaky clean. -2016 Wrangler: bought almost new, ~55k currently -94 Non-turbo slicktop - ~80k on the rebuilt motor over ~12 years, although early on I was running Mobil 1. Past two years I've ran 20w-50 in the summers and get really solid oil pressure.
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