Who makes the Best Engine Oil?
Who makes the best engine oil for the F-series Triton blocks? I've always been a Castrol man (like my father) and my '97 has enjoyed 114,000 miles of RX Super but everyone seems to have their own. Is it just personal preference or is there a real difference (obviously I'm not talking about the 99 cents/quart stuff)?
I've heard that it's more detrimental to switch frequently between brands (due to the different levels of additives) than it is to pick a brand and stick to it. The synthetic versus conventional comparison is obvious, but is it really that different between Castrol, Mobil, Pennzoil, etc.
I've had vehicles over the years and some of them seemed to run better (or get better mileage) with certain brands (i.e. oil, gas) of products and some seemed to only like factory replacement parts. Has anybody found that their F-series runs better with certain brands (oil, gas, filters, etc.) than others?
I've only been a Blue Oval guy for 4 years so any suggestions to help my truck run better/longer would be greatly appreciated.