New Oil Change Interval for 2015s?

[wparsons]

The interval on Canadian Scion's has been 8000km's (5000 miles) since the beginning. The Subaru's were 10000km's (6250 miles), but not sure if they've dropped or not.

[Celadrielas]

Bobistheoilguy.com has some AMAZING information on it under the Motor oil 101 (Complete with a final exam if that's your thing) and it will clear up some questions you may have. Now I've not done my own UOA because I don't know where to do so, but I plan on changing my motor oil a couple times to figure out which offers me what I need. I don't do much long trip travel, so I am debating a non-synthetic 0w-20 such as red line for my first trial.

I can also tell you that on track day, I will be running Royal Purple HPS 5w-20 specifically because I have track experience in other cars and am likely to push hard. That oil has some pretty cool UOA reviews amung users who are aggressive daily and so It should do well after warmup

[viscositosis.rex]

Originally Posted by Celadrielas

Bobistheoilguy.com has some AMAZING information on it under the Motor oil 101 (Complete with a final exam if that's your thing) and it will clear up some questions you may have. Now I've not done my own UOA because I don't know where to do so, but I plan on changing my motor oil a couple times to figure out which offers me what I need. I don't do much long trip travel, so I am debating a non-synthetic 0w-20 such as red line for my first trial.

I can also tell you that on track day, I will be running Royal Purple HPS 5w-20 specifically because I have track experience in other cars and am likely to push hard. That oil has some pretty cool UOA reviews amung users who are aggressive daily and so It should do well after warmup

Hope that the RP HPS 5W20 works out for you. Drink the purple kool aid. Synerlec is no joke. The zinc and the esters will serve you well. The only question is grade for track days. I ask this question every day. If zinc is preventing wear, doesn't that keep your cat from being poisoned?

[sluflyer06]

Originally Posted by bluesubie

Your maintenance schedule was written by Fuji Heavy Industries? Wow! Is it in Japanese or English?


I think Subaru should have used Toyota's DI technology on the WRX/Forester like they did on the BRZ/FR-S. When the oil lab tells you the oil is shot at 1,200 miles due to fuel contamination, you've got a problem. Meanwhile, most manufacturers are extending their intervals on xW-20's.

-Dennis

So then your position is that each dealership writes the manual that they hand you when you buy the car?

Also who in the world mentioned FHI? since when does factory not mean the people that built the car? aka Subaru.

[bluesubie]

Originally Posted by Celadrielas

Bobistheoilguy.com has some AMAZING information on it under the Motor oil 101 (Complete with a final exam if that's your thing) and it will clear up some questions you may have. Now I've not done my own UOA because I don't know where to do so, but I plan on changing my motor oil a couple times to figure out which offers me what I need. I don't do much long trip travel, so I am debating a non-synthetic 0w-20 such as red line for my first trial.

I can also tell you that on track day, I will be running Royal Purple HPS 5w-20 specifically because I have track experience in other cars and am likely to push hard. That oil has some pretty cool UOA reviews amung users who are aggressive daily and so It should do well after warmup

Some good info in Motor oil 101 and some old, outdated, and incorrect information there. And that's not just my opinion, but the opinion of some in the oil industry and some engineers. See comments by Shannow, Ed Hackett, and Molakule:

http://www.bobistheoilguy.com/forums...Oil_University

Check out some of the articles linked on the main page, as well as the Technical and White Papers forums, for some good reading.

Originally Posted by viscositosis.rex

Hope that the RP HPS 5W20 works out for you. Drink the purple kool aid. Synerlec is no joke. The zinc and the esters will serve you well. The only question is grade for track days. I ask this question every day. If zinc is preventing wear, doesn't that keep your cat from being poisoned?

Phosphorus poisons cats. And if you're not burning a lot of oil, then it isn't getting to your cats.

Originally Posted by sluflyer06

So then your position is that each dealership writes the manual that they hand you when you buy the car?

Also who in the world mentioned FHI? since when does factory not mean the people that built the car? aka Subaru.

The manual is written by Subaru of America or Toyota, and that is based on input from the SoA Technical Department, the Legal Department, and the Publication Department, and "approved" by FHI.

The "factory", i.e. the people that build the car, is Fuji Heavy Industries. Subaru doesn't build cars.

-Dennis

[Wepeel]

Very interesting, thanks to OP for bringing this up. Is this for BRZ only or for all Subarus?

[bluesubie]

Originally Posted by Wepeel

Very interesting, thanks to OP for bringing this up. Is this for BRZ only or for all Subarus?

All Subarus. Any changes to the FR-S oil change interval ???

[sluflyer06]

Originally Posted by bluesubie

Some good info in Motor oil 101 and some old, outdated, and incorrect information there. And that's not just my opinion, but the opinion of some in the oil industry and some engineers. See comments by Shannow, Ed Hackett, and Molakule:

http://www.bobistheoilguy.com/forums...Oil_University

Check out some of the articles linked on the main page, as well as the Technical and White Papers forums, for some good reading.


Phosphorus poisons cats. And if you're not burning a lot of oil, then it isn't getting to your cats.

The manual is written by Subaru of America or Toyota, and that is based on input from the SoA Technical Department, the Legal Department, and the Publication Department, and "approved" by FHI.

The "factory", i.e. the people that build the car, is Fuji Heavy Industries. Subaru doesn't build cars.

-Dennis

Your not actually addressing anything. In this case the 'factory' is anything that is Subaru and not the franchise dealer network. It makes no difference what departments are contributing or who actually owns the production floor, its Subaru's name on the car. Legally speaking Subaru DOES build cars, its their name on the origin document not FHI. I'm well aware of how manuals are written among other things I am involved in helping out with technical publications for defense aircraft.

[viscositosis.rex]

Phosphorus poisons cats. And if you're not burning a lot of oil, then it isn't getting to your cats.



-Dennis[/QUOTE]

Got it. I guess I am focused on the oil burning that is caused by wear-related excessive blow by. That is what always does me in, after a few hundred thousand miles.

bluesubie, when does the motor oil ZDDP level get to be too high? It seems to be somewhere between say 1000 and 2000 ppm.

[bluesubie]

Originally Posted by sluflyer06

Your not actually addressing anything. In this case the 'factory' is anything that is Subaru and not the franchise dealer network. It makes no difference what departments are contributing or who actually owns the production floor, its Subaru's name on the car. Legally speaking Subaru DOES build cars, its their name on the origin document not FHI. I'm well aware of how manuals are written among other things I am involved in helping out with technical publications for defense aircraft.

Legally speak Subaru of America DOES NOT build cars.

Founded in 1968, Subaru of America, Inc. (SOA) is the U.S. Sales and Marketing subsidiary of Fuji Heavy Industries (FHI) of Japan and is responsible for the distribution, marketing, sales and service of Subaru vehicles in the United States.

http://www.subaru.com/company.html

Originally Posted by viscositosis.rex

Phosphorus poisons cats. And if you're not burning a lot of oil, then it isn't getting to your cats.



-Dennis

Got it. I guess I am focused on the oil burning that is caused by wear-related excessive blow by. That is what always does me in, after a few hundred thousand miles.

bluesubie, when does the motor oil ZDDP level get to be too high? It seems to be somewhere between say 1000 and 2000 ppm.

That's probably accurate. Even HDEO's like Rotella top out at 1,200 or so ppm's of zinc and just over 1,000 ppm's of phosphorus. Red Line Race oil is about double that and they empasize that it shouldn't be used in street cars.

[VIPER]

Looks like the 2015 Scion FR-S is still at 7,500 miles or 7.5 months according to the 2015 maintenance guide on the Scion site.

http://a230.g.akamai.net/7/230/83646...n_FR-S_WMG.pdf

[Argento_FR-S]

I just changed my oil after 7000 miles and it strongly smells of fuel. I started reading and found some info that hints at DI causing higher percentages of fuel dilution, and am wondering if this may be the cause of the shorter intervals.

t=124547http://www.shoforum.com/showthread.php?t=124547

[rice_classic]

Sounds about right. No oil in the world will protect adequately for 10k miles if it's getting diluted with gasoline.

[Erci]

So here's something kind of funny. Picked up my 2015, yesterday and read all the booklets. The main manual for 2015 states oil changes every 6k. The quick reference booklet (labeled 2015.. so it's definitely new), states oil changes every 7.5k!

Way to proofread your literature, Suby!