Ram Engine Oil QUestions
I just upgraded to a 2014 Ram 2500 Hemi 5.7 yesterday. It does NOT have the MDS system. In reading the owners manual, it says: Use 5w20 oil unless GVW is 14,000, then use 5w30. Well, I am over 1...
Forum Discussion
Thanks for all of the responses....I appreciate the opinions.
I've been doing a lot of reading on the subject of oil viscosity index, etc since I first posted this message.
It seems that royal purple 0w20 has a slightly higher viscosity index than 5w20. Does that make it a better choice??
Also, since most engine wear occurs at start up, isn't a 0w20 always better than a 5w20 year around??? For example, if it is 95 degrees out in July, but the engine is being started for the first time of the day, wouldn't the 0w flow quicker than a 5w then too?? That is, 95 degrees is still colder than the 210 degree operating temperature.
Then at normal operating temperature it would still have the protection of a 20 weight oil.....Does this make since our an I missing something???
I've been doing a lot of reading on the subject of oil viscosity index, etc since I first posted this message.
It seems that royal purple 0w20 has a slightly higher viscosity index than 5w20. Does that make it a better choice??
Also, since most engine wear occurs at start up, isn't a 0w20 always better than a 5w20 year around??? For example, if it is 95 degrees out in July, but the engine is being started for the first time of the day, wouldn't the 0w flow quicker than a 5w then too?? That is, 95 degrees is still colder than the 210 degree operating temperature.
Then at normal operating temperature it would still have the protection of a 20 weight oil.....Does this make since our an I missing something???
