Originally Posted By: Bill in Utah
Originally Posted By: tig1
It's at the higher mileage like you engine where a good synt starts to really pay off. A good synt will prevent ring coking, and the bearings in yor engine looked pretty bad to me for 200K. I have known of several engines of friends that started using oil, and after tear down discovered the rings were coked badly and passing a lot of oil. Many here poo poo synt oil, but your engine is a prime example of why synt oil is susperior to dino for longer OCIs and longer lasting engines.
I disagree but am NOT going to hash it over with you every-time.
This engine would have continued to operate fine for many more miles if it did not have the head gasket problem. The photos PROVE that even with extended OCIs with Jiffy lube oil (which all the drinkers here poo poo beyond along with Fram filters
) does just fine. If this engine saw 5k OCIs with Jiffy Lube it would have been just perfect. Syn would not have done a single thing better.
When are you going to 15k OCIs Tig? Why are you wasting the oil if it can do another 5,000 miles?
If its so "good" then 15k with NO QUESTION. Mobil will warranty the problem if you have one...
Bill
I have thought about 15 OCIs, and at times do 11-12K. 10K is my target mileage, but at times go over that. I have a friend doing 15K with 5-30EP in his 03 Windstar with fine results. I change his oil for him as he is very lack with engine maintainence.