Mobil 1 is a good oil. I've run a lot of engines with it over 100k with no major mechanical failures. Almost any synthetic or synthetic/conventional blend oil will work as long as you go with the mfgr's recommended weight.
Back when I had my SRT4 (neon) I tested Royal Purple, AMSOIL and Mobil 1. I like them all. I ended up going with the Mobil 1 because i could get it from Walmart in the 5 quart jug at a substantial savings over the $8 a quart AMSOIL and R.P. I did run the AMSOIL tranny fluid and loved it.
I also tried out the K and N super oil filter, and didn't notice a big difference from the Mobil 1 filter(also from Walmart) other then it costing twice as much.
almost forgot. I run Mobil 1 in my Ram now. I go to Walmart to get the oil and take it to my shop and they charge me like 15 to do the change. That way I keep records for the warranty and what not.
Last edited by aaront; 04-06-2011 at 12:51 AM.
Reason: more info