hey guys and gals i have an 06 ram and am wondering what weight to use for it. i know it say 5w-20 on the cap and don't want to use something that will screw with the mds system. i want to use mobil one just need to know if its ok to use 10w-30 instead. thanks

 

if by mobil one 10w-30 you mean mobil one 5w-20 then yes you are right

 

Use 5W20 only! The mds solenoids will not work correctly with any other weight. Not sure about an 06, but the 09+ hemi engines will trip an alert and store it in the PCM if the wrong oil is used.

 

Just to give you an idea on how sensitive the MDS system is....I use 5w-30 because I tried to rid the Hemi tick and ONLY because I have the MDS turned of via handheld tuner and the dealer showed me the diagnostic code report when i went in for service on my Instrument cluster. It showed a stored DTC code for incorrect oil weight that only shows up on the Dealers tuner.
Use ONLY 5w-20, 5w-20 or your mds will not function properly and your dealer will know you have the incorrect oil type.
Brand doesn't matter, nor does Synthetic or conventional. 5w-20 is 5w-20 regardless what anyone says. Oil is rated by Viscosity and is how it gets labeled it's weight.

 

Hmm, I wonder how the PCM senses the different oil viscosity. I bet putting in any kind of cleaner or additive really screws that up. I wonder if it can sense if you put in lighter weight than specified.

With that said I pretty much use 5w20 in just about everything, Its almost the perfect oil weight. Heck I even use it in my garden tractor, Saves from having to purchase different oils. In fact I have a 50 gallon drum of 5w20 Mobile 1 synth in my garage.

 

thanks guys i am currently using mobil one synthetic 5w-20 and will stick with it thanks everyone for helping me make a big mistake.

 

I use Royal Purple 5w-20

You have a $700 barrel of oil in your garage? Even if you change your oil every 3,000 miles that'll last you like 85k.

 

Actually it ran me $360+/-, Would of costed less, But I chose to have it delivered. And I change the oil on more than my truck, As I stated I use 5w20 synthetic for everything. Lasts me roughly a year per drum if I try to stretch it. As a plus I find the waste oil burns very clean in my 150,000btu waste oil heater.

 

traker1001, thats a great way to heat. my mechanic does that is his garage for the winter. u figure all the oil changes he does it will pay for itself inno time

 

Need to heat the place...Just change your oil....lol

pretty nice set-up you got there bud!