Originally Posted By: Gary Allan
Quote:
I'm just going to focus on one single benefit that is not a matter of opinion, but science and fact. Its indisputable that synthetics are thinner at cold temps than dino, and therefore they get into the upper cylinder faster resulting in faster lubrication and consequently less engine wear. Less engine wear = longer engine life.
Without protracting this out in endless qualifications, I'd research that a bit more. While a cursory analysis would tend to support this, it's not necessarily true.
Do you think a 0w-40 is thinner @ -20C than a 5w-20? Just put that on the back burner for later thought.
I prefer to keep it simpler than that: Toyota specs a 5w30 weight oil, when I decided to switch (for the first time, not just on this car, but on any car), to synthetic I compared published numbers among 5w30 oils. I didn't look at any other weights. I concluded that, marketing hype aside, they were worth the extra cost. I didn't bother this summer because pour point wasn't an issue on my first, or second oil change.
On my next it will be, and pour point taken alone, or with the other benefits of synthetics, I decided to make the switch. I'm not expecting a miracle on one synthetic oil change in terms of their alleged ability to reduce sludge, but if the PP (chosen again by price, not by marketing) can clean any of it out it'll have done more than my early OCIs on dino have.
IMHO, if you shop around a bit and buy ahead (when what you want is on sale) of the planned change, the price difference between good dino and good synthetic isn't that much. $10/OCI. That's what - 2 or 3 Happy Meals?
-Spyder