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#1
08-01-2003, 04:21 AM
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Mixing 0w40 and 0w30
I had to do my own oil change, my FSS counter reached 0 yesterday and my dealer can't take me untill Aug. 20th. Nuf said. The local Advan. Auto only had 4 quarts of 0w40 and a bunch of 0w20, so i grabed the 4 quarts and head over to another place, no luck with 0w40 BUT they did have 0w30 (closer to 0w40 then 0w20). So I ended up having to mix 3.75 quarts or 0w40 with 2 quarts of 0w30 in my 1999 SLK230. Will I be ok for the next 20 days?
NP PS All oil used is Mobil 1.
__________________
"If it's not BLOWN, it sucks" 1998 C280 Sport - Member 744 Crew 1988 Toyota MR2-Kompressor(No. 3) 168K+ Miles Prior MB Cars 1974 450SLC & 1985 190E 2.3 Click This Link - IOS, Greece - Get Your Phreak On 
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#2
08-01-2003, 07:02 AM
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although the 0W-30 is not mercedes approved, I can't possibly imagine you doing any harm in 20 days or 100 days for that matter. I wouldn't make a habit out of using the 0W-30 but for such a short time I think you can sleep easy.
By the way some Wal-Marts now carry the 0W-40 Mobil 1, only in the quart containers. I'm hoping to see it in the 5 quart containers soon, somehow I doubt that though.........
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#3
08-01-2003, 08:29 AM
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0W-30 isn't on the MBUSA approved list but is on the DB list from Germany! SO don't worry! Shouldn't cause any problem at all.
On MBUSA chart 0W-30 can be used any time that 5W-30 is used. MANY new cars are using only 5W-20 oil year round, even in the hottest weather.
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#4
08-01-2003, 12:28 PM
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Just wondering, my owner's manual doesn't have the oil weight for a given temp listed(anywhere in it). I'm using 0w40 base on the what I read on various MB forum?
NP
__________________
"If it's not BLOWN, it sucks" 1998 C280 Sport - Member 744 Crew 1988 Toyota MR2-Kompressor(No. 3) 168K+ Miles Prior MB Cars 1974 450SLC & 1985 190E 2.3 Click This Link - IOS, Greece - Get Your Phreak On
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#5
08-01-2003, 12:34 PM
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This may help you with oil recommendations.
http://www.whnet.com/4x4/oil.html The 0W-40 is an excellent year round oil pretty much irregardless of where you live.
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