On my 17 spark I did the first oil change myself with 1000 miles on the engine back in February. I now currently have almost 3200 miles. When I changed it I noticed the oil filter that was on the engine at the time was PF64. But the owners manual calls for UPF64R. I put a new UPF64R filter on as part of the change. What is the difference between the two. Should I use the UPF64R or can I use the PF64 since it was on from the factory and is cheaper at Walmart? Also, could I use 0w20 oil since that is what is used from the factory on the 2018 spark? Is there much of a difference between 0w 20 and 5w20? Thanks. I have only changed the oil once on this car so far.