Auto motor oil . What the 5w-30 number means

[bassfighter]

Since it is the time to consider an oil change I was curious of the different type of oils and how it works. It is quite a long article but this fellow is very passionate to contribute his findings.

 

http://www.ferrarichat.com/forum/faq.php?faq=haas_articles

[bigbuck]

That's very long winded, that's for sure, an interesting read. I just do what the owner's manual tells me too. The manufacturer knows their product better than anyone.

[Whitespinnerbait]

I just wasted 10 minutes of my life

[wallyboss]

Whitespinnerbait, you're a really fast reader, cause after 5 minutes I said to myself

" All this won't help me sleep better at night so hopefully it won't keep me up either????"