Originally Posted By: monster1
Currently I'm running Rottela 15w-40 dino with a Fram ultra at a yearly change interval suggested by Jay at Fram. I only put around 8500 miles year in my truck as it's a weekend driver. Would I be well served to start running semi or full synthetic? All I'm looking to do is keep my engine clean and well protected.
Not a lot of info to go on, but we'll presume at this point everything is "normal" in your use. Towing and weekend driving are "normal". Engines that are highly "tuned" with all manner of performance mods are not included hereafter. But "normal", sane use is perfectly within the realm of what I intend to cover ... If you're pushing 700rwp and 1100rwt, beating the snot out of the engine in sled pulling or drag races every weekend, that's not "normal" use.
Dino is perfectly fine for "normal" use at 8.5k miles. I've seen dino easily go further than that, and do so very safely. I can tell you after looking at thousands upon thousands of UOAs, you'll be fine.
If you want to KNOW, then take a few UOAs. But I can already tell you what the answer is ...