Ok guys, newby to the forum here. I decided to run 0w-40 in my '12 frontier 4.0L due to constantly driving up and down mountains in the Appalachian region, gearing down as you descend and constant 2500-3000 rpm going up the mountains. I was using 5W-30 of pick your brand ( I tried several to see if any would hold up to the daily torture this area can bring, list included PP, Kendal Semi, QSUD, Valvoline Synpower, Havoline Syn.). Of that list with what my engine goes through, Synpower and Kendal seemed to hold up the best but I still felt they had sheared enough to change by 3-4K miles, regardless of additive depletion or what have you.
Just to feel better about the load my truck sees daily, I decided to give Castrol 0w-40 a whirl and was surprised to read on the back that it is made in Germany. I have searched quite a bit using google but not much comes back on this oil in regard to good info. Anyone know of whether this is like german Castrol 0w-30 in composition (group IV)? Has anyone used this oil and what is your experience/knowledge of it. So far my truck seems to like it, less valve/timing chain noise on start up, very very minor difference in take off. Someone educate me on this oil since there doesn't seem to be much info on it that I can find.
Just to feel better about the load my truck sees daily, I decided to give Castrol 0w-40 a whirl and was surprised to read on the back that it is made in Germany. I have searched quite a bit using google but not much comes back on this oil in regard to good info. Anyone know of whether this is like german Castrol 0w-30 in composition (group IV)? Has anyone used this oil and what is your experience/knowledge of it. So far my truck seems to like it, less valve/timing chain noise on start up, very very minor difference in take off. Someone educate me on this oil since there doesn't seem to be much info on it that I can find.