|
The problem with synthetic oil is the cost vs dino, and the fact that it is best to replace it at approximately the same interval. I run synthetic in my Honda, and have selectively run synthetic in several cars that I have owned, mostly cars that I bought new and intended to keep until the wheels roll off. I have had fine service out of them, and peering into the top of the engine reveals little if any gum. I also have a 91 Chevy 5.7 Liter w/120K+ that has run dino exclusively and still runs like a top, and it looks very similar. The issue that I have is that no matter what you run, the oil gets dirty, and needs to be changed around every 3K for that reason, unless you have a bypass oil system (which is capable of removing the offending particles)and you replace the filter every 3K or so. In 3K the dino oil is not broken down thermally or otherwise, so it is just as effective as synthetic at that point. Going much past 3K on either will be running your engine with particles that will cause wear.
I think that most of the the gum on dino lubricated engines comes mostly from oil that is not changed frequently enough.
All that being said, I think the best option is dino changed every 3K. Inexpensive and effective.
|
