- Jul 11, 2010
- Reaction score
The Subaru 3.6L Boxer Engine is naturally aspirated, not Turbo charged.I don't want to start a debate on Subaru motors BUT...
I have heard of many reliability problems with that 2.5 boxer.
I have also heard great things but I wouldn't take any chances.
I suggest you use the best oil available (Synthetic Mobil 1 comes to mind, ).
Buy it on sale in advance. Also buy a good synthetic filter (my mechanic says
it's not worth going to crazy prices but dirt cheap is a bad choice).
12,000 miles is way too much mileage in my opinion.
I checked it out:
This from a Subaru Dealership:
"6,000 Miles- At this specific mileage, you'll need to have your engine oil and filter replaced. If your vehicle features the standard 2.5-liter engine, then you'll need 0w-20 synthetic oil. If you drive the 3.6-liter turbo engine, then you'll need 5w-30 synthetic or conventional oil. At this interval, you'll also need to have your tires rotated. "
On such a motor, I would definitely use synthetic oil (I do in all of our cars...)
and change it religiously every 6,000 miles. The "extra wear" permitted by synthetic
oil is only acting as a "buffer" towards keeping the motor running for a long time.
Some manufacturers (Mercedes and others) recommend a change of oil every 10,000 miles
but I wouldn't wait so long myself. If the mileage is done quickly, long trips at regular speeds
you can go a long way but for most people our daily start and shut, stop and go, doesn't make for long mileage