Originally Posted By: RedOak
Was the 03 to 06 model required to use 5w30? If you are using 5w-20 with good result then don't fix what is not broken. I have a 06 newer body style with the older version 4.7. Manual requires 5w30. It is AWD with the option to go to 4 lock mode. My interstate mileage has been as high as 21 mpg. That is staying at 65 mph in MD and VA. Around town mileage drops to 13 to 14 at best. Has been a very reliable vehicle at 47,000 miles. My only complaint is some of the poor interior quality panels that cover the seat belt area. Has Chrysler allowed use of 5w-20 in older vehicles like ford did?
I thought the old/first gen body style ended in 04. I have the 05 4.7 with the newer body style and thought the 05's had the new engine
Was the 03 to 06 model required to use 5w30? If you are using 5w-20 with good result then don't fix what is not broken. I have a 06 newer body style with the older version 4.7. Manual requires 5w30. It is AWD with the option to go to 4 lock mode. My interstate mileage has been as high as 21 mpg. That is staying at 65 mph in MD and VA. Around town mileage drops to 13 to 14 at best. Has been a very reliable vehicle at 47,000 miles. My only complaint is some of the poor interior quality panels that cover the seat belt area. Has Chrysler allowed use of 5w-20 in older vehicles like ford did?
I thought the old/first gen body style ended in 04. I have the 05 4.7 with the newer body style and thought the 05's had the new engine