Why? MDS uses deactivating lifter that need 5W-20 to work properly. Otherwise, MDS may not work.
From AllPar, Oil grades and use. If you have the MDS system, be sure to use 5W20 oil - note that many dealers will use bulk 10W30 or even 10W40, partly out of ignorance and partly because it’s cheaper. You need to use the right oil if you want to keep your engine. Of course if the owner’s manual says something else, follow its advice - but don’t be convinced by a mechanic or oil-change place. Insist on the right grade and if they don’t use it...get a refund and go somewhere else. A technical service bulletin (TSB) - 09-015-04 and 09-013-04 - says: “Vehicles with the Multiple Displacement System must use SAE 5W-20 oil. Failure to do so may result in improper operation of the MDS.” Watch the mechanic pour it in! (This is said to be the real reason BMW provides free oil changes.)
Be prepared for a difficult to remove oil filter. The factory put them on with a dry gasket and over tightened. Finally found an oil filter wrench that looked like a big pair of channel locks. And we had the Ram on a lift and it still took me and a friend working together to get it off. So come prepared for battle or just take it to the dealer for your first change, make sure they do it right. Then after that you should be good to go on your own.
Bought my filter at Carquest. Make sure you get the one for the 2009 model year. It's different than earlier years.
Plus I installed MagnaFine engine and transmission filters that are good for about 30 to 50,000 miles.
Hello Everyone,
I have the 4.7 and they are recommending 5W20 in it as well. I figure since I get my oil changes for under 25 bucks and the first 6 oil changes free from the dealer, I will let them deal with getting to first filter and everyone after that off.
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2009 Dodge Ram 4x2 QC, 3.92 gears and one very satisfied owner. Future mods Line-x bed liner, Superchips Tuner, Dual exhaust.
Ouch. RP is not cheap either. How many miles are on it?
Its ready for the next change so im not taking a hit. What sucks is I need 7qts for my truck, 5qts for my gfs cobalt and 2qts for my powerwasher. Thats going to be a fun trip to napa lol.
Its ready for the next change so im not taking a hit. What sucks is I need 7qts for my truck, 5qts for my gfs cobalt and 2qts for my powerwasher. Thats going to be a fun trip to napa lol.
I am running Castrol full synthetic because it was on sale. I am going to change it at 6k and then have the oil sample tested. If the sample is good, I am going to keep using it.
Oil, change, types
