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Checking the health on a 3.0 H6

1781 Views 7 Replies 7 Participants Last post by  smeric
I am seriously thinking of moving to the 3.0 Outback for its fuel economy. :eek: Have to say my current vehicle is a 4.0 Discovery2 V8 so anything would be cheaper :p

I know my way around an engine bay, I know how to DIY a couple of basic to moderate service items.

What are the specific things to look out for on these motors? Ignore the normal knocking the body to check for putty, frequent service intervals etc.
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Ditto on the idler/tensioner bearings. Everything else on my 3.0 has been very reliable for 70,000 miles.
Check the stereo and HVAC operation carefully. Most of the 3.0 cars have the integrated stereo/HVAC unit with auto climate control, and there are a few posts on this site about part or all of the unit failing because of bad soldering on a circuit board. Because the stereo and HVAC are integrated, they aren't easily replaced with aftermarket pieces. $600 seemed to be the going rate for a new replacement part from Subaru; I got lucky and found one in a salvage yard for $100.
MPG can be a little disappointing around town. I've seen 16-17 averages when driving exclusively around town. 19-20 is my typical average in mixed driving, mostly city.
On the highway I've seen as high as 28 under ideal conditions.
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