Using AMSOIL in a GM vehicle calling for dexos1 is 100% safe even if it does not appear on their little list of certified oils that you must pay GM to be on. Re: Oil Filter Location on the 5.3L Oct 23 2011, 12:18pm
Re: does peanut butter affect acid reflux. I'd say yes! Peanut butter is probably one of the most-acid inducing foods because it is primarily fat. It requires more energy to digest (just like any other fatty food), which requires more acid to do the job. Lay off the PB, and switch to a low-fat carb-based diet.
Eating large amounts of processed foods and sugars is a surefire way to exacerbate acid reflux as it will upset the bacterial balance in your stomach and intestine. Instead, you'll want to eat a lot of vegetables and other high-quality, ideally organic, unprocessed foods. Also, eliminate food triggers from your diet.