I fugured that but wasnt sure if it was just an additive package (yes theres a difference all motor oils have an additive package thats one of the things that makes them different from one another) or actual synthetic oil blend...that why I put (blend?) when mentioning it above...

 

Bottom line with my higher mileage fleet....damned if I do, damned if I don't, huh? JK'ing. I'll look into the syn blends...and anything but fram for the filter.

 

Run a good synthetic (like Pennzoil Platinum) and a good filter (NAPA Gold or WIX) and if stuff starts to leak, replace those seals. Simple as that.

 

Actually, I believe synthetics have been around much longer , about mid 60's and if memory serves I think it was Chevron. And I swear by it, not at it. Cheap insurance if you ask me. My brother inlaw did an oil change on my wifes car with mobil 1 and did not tighten the drain plug. She drove 20 miles without it. I started the car and wondered what the hell was going on under the hood. I saw the IDIOT light and went underneath and saw the problem. I put more oil in it and another 80,000 miles

 

i boughT my truck with 186k. PO always brought it to dealer for conventional oil change. When i got it, i immidiatly changed to Moil 1 full synthetic...been using t since, have 197,900 miles now and no leaks

 

Bingo. I had a 2002 Cavalier bought new and switched it to Synthetic at 30K miles. All of the BS artists out there would insist the engine had to be broken in with Synthetic. The car ran great and no leaks, ever.

I run my Dodge with Synthetic. Never a problem.

 

Actually, conventional wisdom is to perform break-in on a new/rebuilt engine with petroleum-based oil. The thinking is that because of synthetic oil's superior lubricity it could interfere with the rings seating and prolong break-in. If a driver starts pushing the vehicle too soon before the rings seat, accelerated wear and/or failure could result.

 

you are right. ive heard that from quite a few mechanics. ive been running Amsoil in my truck since i got it from my stepdad. i new it hadnt had an oil change in a long time so i did it asap. i also run it in my 01 cavalier. when i switched from the blended stuff to the amsoil in that car, i noticed a difference right away and it dont leak. i really like Amsoil. i have tried other full synthetics and havent been impressed. i was impressed with Amsoil, so i became a dealer for them and now most of my friends and family run Amsoil too. they seem to like it too. no complaints.

 

Depends, if its a full synthetic high mileage it's full syn. If it's a blend it's a blend. Most high mileage oil is conventional oil that has additives to help with higher mileage wear and tear.

 

Also, never use a teflon additive in a break-in on a new/rebuilt engine.Nothing will seat!!! They recommend 12,000 miles before it's use.