I've been away from this site for a while, but found this place to be a great resource a few years ago back when I had an 06 Jeep with the 4.0L. After the engine needed a new cam and drive gears, then after the engine totally self destructed with completely worn lifters and cam again, all with less than 40k miles, I started to do a lot of research and learned a lot here about the new oils and the lack of zinc and how bad they can be for old style engines.
Well I bought an 01 Cummins a couple of years ago, low miles and well cared for, and I'm wanting to keep this truck for a long time and now that I've come back to this site I'm seeing post about the new CK oil and lower zinc level and if they are bad for an older diesel engine, so now I'm having flashbacks to my old Jeep. Is there a write up or a good resource for learning more about the new oils and benefits or negatives about them?
The other thing I've been wondering about is I see a lot of people recommending Delvac Rotella or a few others. I'm a firm believer in synthetics, especially here in the mountains of Colorado when it's -20 in the mornings. I've always used Mobil1 in my gas vehicles, so for the Cummins I've been using Mobil1 Turbo Diesel Truck oil and was wondering why the Delvac seems to be recommended more instead of this oil. After comparing the Delvac1 with the Mobil1, the Delvac1 is CK rated and the Mobil1 is CJ rated, so would I be better sticking with the Mobil1 TD truck oil or the Delvac so many seem to like.
Well I bought an 01 Cummins a couple of years ago, low miles and well cared for, and I'm wanting to keep this truck for a long time and now that I've come back to this site I'm seeing post about the new CK oil and lower zinc level and if they are bad for an older diesel engine, so now I'm having flashbacks to my old Jeep. Is there a write up or a good resource for learning more about the new oils and benefits or negatives about them?
The other thing I've been wondering about is I see a lot of people recommending Delvac Rotella or a few others. I'm a firm believer in synthetics, especially here in the mountains of Colorado when it's -20 in the mornings. I've always used Mobil1 in my gas vehicles, so for the Cummins I've been using Mobil1 Turbo Diesel Truck oil and was wondering why the Delvac seems to be recommended more instead of this oil. After comparing the Delvac1 with the Mobil1, the Delvac1 is CK rated and the Mobil1 is CJ rated, so would I be better sticking with the Mobil1 TD truck oil or the Delvac so many seem to like.