It's for a '92 500SL with 160K. The manual says to use 20W-50 above 32F which is where it will be driven and all the Mercedes dealer service records show it was changed with 20W-50. I would like to use Mobil1 but all I found was that they only go up to 5W-40. Only Valvoline has a 20W-50 synthetic. Is it just as good?

Mobil 1 comes in 15W50. That should be suitable for your climate. Call the local MB dealer's Service Department and ask.

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Fred Hoelzle

Thanks, I just noticed it's called Mobil 1 EP. $6.24 a quart at Advance, WOW. Any place cheaper?

walmart may carry it. They are about the cheapest place for Mobile 1 oil

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Daily Driver: 02 E430 4MATIC
In the family: '03 E500 // '04 ML500 // 64 220SE

The parts dept. manager at the MB dealer told me that they use Mobil1 0W40 on all the MB vehicles.

Carlos, you're right the MB dealers use Mobil 1 0W40 in all the new engines. In the older vintage engines (up to 1995 or so) our local MB dealers used Quaker State 15W40 mineral oil.

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Fred Hoelzle

A few Mercedes-Benz Approved Oils http://www.whnet.com/4x4/oil.html

Go to Wal Mart for your M1 oil. Cheapest place in town, but remember that M1 is not a "cheap" oil. The 15/50 is probably the best all-round weight. It has a good low temperature flow (down to -49F) as well as excellent high temp characteristics.

Go here for more oil information than you can ever use:

http://www.bobistheoilguy.com/

Sometimes I get the impression these guys are a little obsessed when it comes to their oil, but ask an oil question on any site and you can start an endless thread. Everyone has an opinion, and this one is mine...

230/8

Our local dealers only use one oil at this time: M1 0W-40