Quote:
Originally Posted by rs999
This is reason why the intervals are 7500 or in the past 3000 miles.
If you check your oil monthly and top off appropriately you could definitely go 10K miles between checks.
Also, don't forget to check your air monthly as well.
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It's really unfortunate that SoA is going backwards on oil change intervals, especially when under normal conditions (especially mainly highway miles), most n/a cars can easily to 10k on synthetic oil.
In the UK, Subaru intervals are 10k miles on n/a cars because the rental fleets refused to carry Subaru's unless they agreed to the longer intervals (according to a Scottish poster at bobistheoilguy).
I know an Outback owner/Amsoil dealer that runs 12-15k miles on Amsoil, guided by uoa's. Some people aren't worried about Powertrain warranty coverage when they run a good oil in the first place.
He's also a former Air Force rocket scientist so SoA probably wouldn't get very far if he took them to court/litigation over warranty denial.
-Dennis