Originally Posted By: rmillersbs
I have a 2009 Dodge RAM 1500 Hemi (5.7 liter). Am taking it in for its first oil change with about 3500 miles on it. Engine has been broken in correctly and i've got several runs up and down a 5000 ft peak hauling 1000 lbs of bikes.
My question is, is it too early to run synthetic? I prefer to use Mobile 1. I'm guessing 10w30 or 10w40 for running here in Socal (40 to 110 degrees ambient).
Rich
Nice truck even if site unseen.
Stay with a 20 weight oil. Your MDS system requires it for proper operation. No need for a 0W based on your temps so stick with the 5W-20 unless you will get a tuner and disable MDS. If so you could sneak up to 5W-30 or 10W-30 max. I would personally avoid 40W oils.
Your 5.7L in the 1500 calls for a 20 weight as stated. You also need to use an oil that meets/exceeds Chrysler MS6395 and that is certified to carry the API Starburst symbol. You will have to change it either by the Oil Life Monitor OR 6 months/6000. Those are the 4 things that matter in regards to your warranty.
Swap it over now or when ever you want. The HEMI engine loves synthetic. Here are some oils that are good choices, come in 5W-20, and that meet all of your warranty sppecification needs...
Kendall GT1/76 Lubricants Full Synthetics( same oil )
Penzoil Platinum
Valvoline Synpower
QuakerState Ultimate Durability( formerly Horsepower )
Amsoil XL
Mobil 1