My truck is due for an oil change it's a 2014 Ram 1500 with 5.7 engine. It has just under 71,000 miles. I planned on using Pennzoil Platinum after reading all of the praise I have on this site but when I went to the store they only had the High Mileage version. Is there any reason not to use it and in the 5w-30 viscosity? Thanks in advance!