Well, so much for running the GC in my Chrysler for a full year. I had to take it back to the dealer Friday for them to fix a switch they'd broken when they replaced the AC evaporator. I was looking under the hood this morning and caught a glimpse of a BLUE AC oil filter sticking out of the side of the block. I crawled under the car and sure enough my oversize Wix filter was gone. I called and spoke with the service rep that handled my "case" and he said they'd given me a complimentary oil change since I had to go to the trouble of coming back in for a problem. Oh, well... (I told him in the future that NO work was to be done on my car unless authorized by me.)
I've been so impressed with the performance of Pennzoil 5w20 in my Olds van that I'm going to try it in my Chrysler (3.5, 24v SOHC, 252 HP, 6500 rpm redline). Wednesday is the next day when we're supposed to have weather nice enough to change the oil, but here is my plan:
Buy two 5 qt jugs of 5w20 and one SuperTech ST8A filter. Drain the oil. Pour in 5 qts of 5w20. Drive ten miles. Drain oil and change filter. Fill with 5w20. Drain and test at 3000 miles.
The 10 mile run on 5w20 and then doing another change is to get all the old oil out of there which should enable me to get a better picture on how the 5w20 does on the 3000 mile UOA.
I've decided to go this route since my driving style now is not really ideal for extended drains anymore. I'm lucky if I put 7000 miles a year on my car. So I could go with a good quality "conventional" oil like Penn 5w20 and 2 oil changes a year. (If I don't get good results with the 5w20, I'll probably try the Penn High Mileage next.)
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