I'm trying to decide on an oil to run in my '01 Ranger with the 3.0 V6. While it is a little beat up and looks rough, its relatively low miles for the year,(135k) runs great and I'd like to try and get 300k out of it, if not more. Im currently running Maxlife 10W30, first oil change since Ive bought it, with a Motorcraft filter. The only thing that concerns me is that it doesnt meet Fords WSS-M2C930-A spec, which seems to be geared towards 20 grade oils. I dont want to use 20 grades in my truck, but rather a 5W30 or 10W30. Also, my year model, like alot of the other Rangers with the 3.0, has EGR, id like to use an oil that would protect against that as well. I have a check engine light on right now for EGR related codes, but it still runs fine. I was thinking of running a Dexos 5W30, would the Dexos spec be more than sufficient for my engine and the extra heat from the EGR? Thanks guys.