Oil Change Interval Change (Subaru recommended)

[viscositosis.rex]

Originally Posted by kavanagh

According to Blackstone on my used oil analysis with 7500 miles including 4 track days on dealership oil change using Toyota oil, I should change at 10k intervals.
This is for a car in AZ that sees ~4-6 track days per 7500 miles and runs e85.

This is the Golden Post.
I say Sustina 0W20 is good for 15k miles OCI.

[kavanagh]

Originally Posted by viscositosis.rex

This is the Golden Post.
I ssy Sustina 0W20 is good for 15k miles OCI.

I should say that I may never actually take it to a 10k interval just because I'm a freak about early changes, but I do like to know with confidence that going as far as 7500 is absolutely no problem at all even the way we drive and our environment.

[kdmxdgt]

Originally Posted by kavanagh

According to Blackstone on my used oil analysis with 7500 miles including 4 track days on dealership oil change using Toyota oil, I should change at 10k intervals.
This is for a car in AZ that sees ~4-6 track days per 7500 miles and runs e85.

what type of oil do u use?

[finch1750]

I can confirm long intervals. I ran 0W-20 Mobil 1 for 3 autox and 600-700 miles of hard canyon runs (staying in high RPM as most was uphill) on a 7500 mile interval. Blackstone told me to run it out to 9,500 miles next time. UOA is in the UOA thread.

And this is with 54k miles on the clock already

[kavanagh]

Originally Posted by kdmxdgt

what type of oil do u use?

Stock Toyota fill at the dealership. I considered changing, but I may just end up buying it from them after my free services are over. I'll keep doing the UOA and keep track if it stays stable, but I see no reason why not. I have been a sort of oil Nazi on all my past cars and motorbikes, but it's nice to see the factory using good fill.

[kdmxdgt]

these newer well built motors have really come a long way in burning clean. the oil in my last car (2007 mazda3) would look good after 5k mi changes while my sister's 2002 elantra would have black as f*ck oil after 3k miles.

[Rocket.BRZ]

Originally Posted by kdmxdgt

these newer well built motors have really come a long way in burning clean. the oil in my last car (2007 mazda3) would look good after 5k mi changes while my sister's 2002 elantra would have black as f*ck oil after 3k miles.

When will everyone learn that oil color does not mean much of anything. It's simply the oil cleaning your engine. It's not supposed to look like McDonald's French fries all the time.

[JB86'd]

I autocross almost every month now, and make a 1 mile trip to and from work almost everyday, so lots of trips without getting up to full temps. My car is garaged in socal so there's never any really cold starts..using Toyota ow-20. I'm paranoid about oil so I'll probably change every 5k miles to be safe. Everyone's situation is different, but I'd rather change a little early to be safe.

[drewbot]

Don't worry about it. Canada spec days every 8000 km! The oil is barely even used up by then.

[rs999]

Originally Posted by bluesubie

The majority of people don't check their own oil and sometimes ignore the low oil warning light. By reducing the OCI, dealers can keep a closer eye on oil consumption.

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.

[rs999]

Originally Posted by JB86'd

I autocross almost every month now, and make a 1 mile trip to and from work almost everyday, so lots of trips without getting up to full temps. My car is garaged in socal so there's never any really cold starts..using Toyota ow-20. I'm paranoid about oil so I'll probably change every 5k miles to be safe. Everyone's situation is different, but I'd rather change a little early to be safe.

Do you check your oil and air monthly? You could get away with 10K mile intervals if you did otherwise why not go every 3000 miles like garages used to recommend in the past?

[TM]

Originally Posted by shiumai

first few oil changes/basic maintenance at subaru are free. something like 2 yrs/24,000 miles or 3 oil changes.

I never got any free oil changes when I got my new BRZ. In fact, they wanted to charge me $200 for the BRZ's "first 7,500 mile service".

[bluesubie]

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.

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

[shiumai]

Originally Posted by TM

I never got any free oil changes when I got my new BRZ. In fact, they wanted to charge me $200 for the BRZ's "first 7,500 mile service".

I'm wondering if the offer is dealership dependent after reading through the other thread. when we bought our 2013 outback (in 2012) and 2013 BRZ from the same dealership, i was told "you also get free oil changes and maintenance for 2 yrs/24k, and one free alignment". i asked whether we had to bring the vehicles back to the same dealership, and they said 'no - you can go to any one'.

so, we take both vehicles to a dealership for service that's much closer to our house, and have not paid for any service/scheduled maintenance yet (outback has had two, and the BRZ has had one).