Oil... Synthetic vs. Regular ???
Pros?
Cons?
I have an 04 FXT in Alabama.
Pros?
Cons?
I have an 04 FXT in Alabama.
I probably should have mentioned that as well.This has been discussed in depth and at nauseum... please refer to the sticky in the Engine & Exhaust section: http://www.subaruforester.org/vbulletin/f113/synthetic-motor-oil-discussion-38348/
You canswitch. Semi-syn is probably a waste of bucks.If your car has been using mineral oils for years, would it be ok to switch to a fully synthetic oil or would you recomend going with a 50-50 blend to "ease" it in. Thanks!
M1 5w-30 GF4 is consistently shown to have much higher wear in UOA than premium conventional. The M1 0w-40 ACEA A3/B3-4 is a good, "real" synthetic and should do better than plain jane M1 - which is actually a synthetic blend. Many synthetic will trade good cleaning and sludge prevention for increased wear. The commonly used synthetic base stock is NOT as good a lubricant as group I/II "dino oil" basetocks.go with synthetics.
pros - possible mpg increase, offers more protection, i have more peace of mind
cons - none in my case