dodge guy wrote:
mudfuel07 wrote:
dodge guy wrote:
And to add. In my professional opinion, as a tech. Since the 5W20 use has started across all manuf, the engine issues have risen. I believe it has to do with the thin oil that is spec’d for fuel mileage! Had an 07 Chrysler T&C and it used a quart of oil every 1500 miles between oil changes using the factory recommended 5W20. I switched to 5W30 and it used only a 1/2 qt every 3500miles. The only change to thinner oil was due to lower CAFE standards.
My Excursion is also supposed to use 5W20. After pulling into a campground for the night and starting it the next morning it would rattle for 5 seconds on startup due to oil drain back. Too much and unnecessary. I again switched to 5W30 as the previous motors used and it makes no noise and uses no oil, at least not by the stick! And it has had M1 since I’ve owned it with 17k miles. I do 4K mike oil changes.
0W20 and 5W20 while good for mileage leaves a lot to be desired for lubrication.
I thought one of the reasons for switching was the tighter clearances in the engine as well. A thicker oil would not get by and lubricate.
Some yes and some no. My 07 T&C with the 3.8 was specd for 5w20. The 05’s (I think) were specd at 5W30. Everything in the motor stayed the same, the only change was the oil.
The 6.4 requires 0W40 synthetic oil.