- Mig139 wrote:
- I will definitely look into it!!!! Thanks!!!!
you're welcome! I have been using what's known as UOA (Used Oil Analysis) where you take a sample of engine oil, send it to a lab, they send you back results. It shows what elements are in the oil which allows you to see how the engine is wearing/running. It will also show if the oil is shearing (thinning) due to things like fuel dilution.
Fuel Dilution can occur because of leaking fuel injectors, or short trips where the engine never gets warm enough to burn off moisture out of the oil. That can thin the oil down and make it too thin for your engine.
Since the intro of the newest oil 0w16, the oil manufacturers have re-shuffled the oil thickness (viscosity). Meaning, things have moved downward in terms of thickness. So a 5w30 (I posted this before) will be a thinner version. There are SAE standards to the range (in cSt) of what can be called a 5w30, for example.
you have 2010 tC? Then 0w20 wasn't even approved by Toyota. I believe they spec'd a 5w20, but if you use a little oil, move up to a 5w30. I'd recommend Castrol Magnatec 5w30, I'm using that now and nothing wrong at all. It is in the middle of the thickness range and the NOACK is low, which our hot running engine seems to need.
Hot running in the sense that the previous generation had a sludging issue because it was not running hot enough, and too long of an interval for oil changes. toyota bumped up the temps a bit on the next generation (our engine) to get rid of sludging, because of this I found the NOACK spec plays a role.
You might (if you want to know) send your oil off (free test pack, just contact them) to blackstone labs in indiana. See how your engine is wearing, it really helps to know if the oil your using IS
good. No more guessing.
And if you want to learn more about oil, bob is the oil guy forum is one of the best places. sure, you have trolls on there, but that's like any forum..