I was combing through the owners manual and found some discrepancy. There's a ton of baggage around 5w20/30 affecting the way the MDS system works and I've even been told that it'll throw a code if it senses an oil outside 20wt parameters as the oil pressure is used to run the valve shutoff for the MDS system. As it is written in the manual
Engine Oil – 5.7L Engine | We recommend you use API Certified SAE 5W-20 Engine Oil, meeting the requirements of FCA Material Standard MS-6395 such as MOPAR, Pennzoil, and Shell Helix. Refer to your engine oil filler cap for correct SAE grade. |
Engine Oil – 5.7L Engine 2500/3500 trucks operating under a gross combined weight rating greater than 14,000 lbs/(6,350 kg.) | We recommend you use API Certified SAE 5W-30 Engine Oil, meeting the requirements of FCA Material Standard MS-6395 such as MOPAR, Pennzoil, Shell Helix or equivalent. Refer to your engine oil filler cap for correct SAE grade. |
My vehicle is a 2019 1500 classic 4x4 with the 8-speed automatic for what its worth.
Do they program the motor for the 2500/3500 chassis trucks differently to operate with 5w30?
What is leading to this discrepancy and am I wrong to believe that this eludes to 5w30 being okay to operate in my 1500 without the motor knowing any different.