Quote:
Originally Posted by tofurun
Well... This is about as basic as it gets. I have been reading exactly "what" oil means and what the numbers mean. I tend to agree with what a lot of the descriptions say about people really not fully understanding what the numbers are on oil.  . Mostly because I had no idea myself (the book says use this so i use it). There I said it I DONT KNOW. well I did my research and am trying to fully understand all of it.
I know people are running different oil weights for things like oil coolers and turbos. BUT WHY. why do this. Turbos get oil hotter? Ok so use a thicker oil? well what about the engine specs from Toyota/Subaru? They say run 0w-20. now we have a oil cooler/turbo and we are running 0w-30. So we are increasing the Hot viscosity of the oil. Idk maybe I have been reading this explanations wrong. Heck I may be making it way more complicated than it really is. I am not asking what I should be running (yet). I am trying to understand the entire thing.
It may just be me but i think this would be a great write up for this section of the forum as a Sticky. Not trying to get flamed just trying to fully understand it. |
Well, now, @
tofurun ....... first off, your research is NOT complete, if you don't understand it. Most all the answers to your questions, can be found in the literature.
Yep, IMHO, you're making this oil thing waaay to complicated, for a basic understanding necessary, to drive your average FR-S in Georgia.
Oil, and more recently synthetic oil, has been used to lubricate internal combustion engines for years now ....... this is not a new science.
Back-in-the-day, (
) it was pretty simple ..... use 20 weight in the winter and 30 weight in the summer. Why? Because it was better to have the "lighter" oil in the crankcase in the winter so as the poor old 6V battery could turn over the old 200-400 cu. in. big iron engines. The 30 weight in the summer held up better under the higher heat.
To thoroughly understand oil and it relationship to the "physics" of the engine, one has to understand the "chemistry" of oil (including synthetics).
So, for you to have a through understanding of this concept ...... you have a lot of research ahead of you.
OR
...... you may take the humfrz approach and just read and follow the owners manual.......
humfrz