Some Links to Great Tech Articles on Oil, etc. (archive)

I found these articles to be very helpful... hope they shed some light on your questions. I am currently running Mobil 1 10W-30 in the cold Canadian north. I switched over last summer/fall from whatever dino oil the previous owner was using. As for how long between changes, I decided to do oil analysis to determine the change time. Currently have about 15,000 km on it and analysis still good. Have base line for new oil, then one at ~10,000 km and one at ~13,000 km and one due again shortly. Analysis shows all contaminants including dirt etc, (filter) and viscosities. Cost less than $20 CAD (~$13 USD) per run. I have the results on Excel if anyone would like to see how it is going.

http://www.pelicanparts.com/techarticles/mult_gas_and_oil/mult_synthetic_faq.htm
http://www.mr2.com/TEXT/OilFacts.txt
http://www.mr2.com/TEXT/oil_filter_test.html
http://www.audiworld.com/tech/eng9.shtml
http://www.audiworld.com/tech/eng12.shtml
http://www.audiworld.com/tech/eng14.shtml

'88 750iL

And I guess something like 5w-30 or 5w-50 (thin) (as opposed to 20w-50 (thick)) would be better if possible because it is relatively thin, but can withstand high thermal loads (especially 5w-50).

Am I right?

http://www.pelicanparts.com/techarticles/mult_gas_and_oil/mult_synthetic_faq.htm

Follow Ups:

These are great writeups... Kevin 22:29 1/28/2002 (1)
- No no no nooooo Henkka 750i 04:40 1/29/2002 (0)

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