Moderator: volvite
I've been running the NAPA synthetic and Gold filter for many years. The Gold filter is a premium WIX as you probably know. They routinely have this oil on sale for $3.50/qt. or 5 qts plus a gold filter for $23. I had an oil analysis done around 50k miles running this oil at 7,500 mile interval and it was in superb shape. Now at 90k miles, I did another oil sample with an 8,500 interval a couple months back but keep forgetting to mail it in.smj999smj wrote:Another lower cost synthetic is NAPA's synthetic oil, which I hear is made by Valvoline. I saw recently that they had an offer of 5 quarts of their synthetic plus a NAPA silver oil filter for $19.99.