[Bownse]

Originally Posted by holycow

strange... my service advisor also told me not to run synthetic in the 2.5 boxer. I don't see how it could adversly affect the engine in any way shape or form.

do some reading on the Magnason-Moss act and how it ended the old practice of mfgr's mandating the use of "their" products or they'd void your warranty. What MM does is say that any mandate for anything other than meeting a standard (like SJ, SL for oil) and they have to GIVE you the product for free.

They can recommend a viscocity range and change interval and, as they do, recommend you use their oil filter. But if they use that to void your warranty out-of-hand they would then have to "give" you all their mandated products. It also puts it on their shoulders to PROVE that it was a specific oil or filter that caused the failure (hard to do) if it meets the standards they recommend.

So using Mobile 1 won't void your warranty unless it's a viscosity that is outside their recommended range of you don't change it often enough. I've used Mobile 1 products on many different bikes and autos over the years and hundreds of thousands of miles and never had a problem. HOWEVER I never trust they marketing hype about 150,000 mile change intervals and that kind of hogwash. I use the full synth as a way to ensure quality and long engine life. I continue to change oil at 3k miles for stop-and-go and can eek out longer for road trips with lots of super slabbing.

But that's me. I know knowledgeable people who swear I'm wasting money and that ANY quality dino oil is fine as long as you change both your oil and filter every time and do it at 3k miles (or dealer-recommended intervals or more often).

As mfgr's move to increased service intervals as marketing tricks, I continue to swap at the old 3k to 4k miles since it's the accumulation of dirt and acids that will increase the wear inside the motor.

[Blackfang]

Originally Posted by Bownse

do some reading on the Magnason-Moss act and how it ended the old practice of mfgr's mandating the use of "their" products or they'd void your warranty. What MM does is say that any mandate for anything other than meeting a standard (like SJ, SL for oil) and they have to GIVE you the product for free.

What does that have to do with not recommending using a synthetic?

[sbstiguy]

It means that if you have a dealer that says you HAVE to use a certain oil they carry, by law they are mandated to give you that certain oil for free. Its a consumer protection act to keep dealerships from gouging prices and making you take unneeded or unwanted services.

[lidrew]

My tuner, who is reputable in the area told me to NEVER run synthetic in a Subaru. So I don't.

[sujak]

Originally Posted by lidrew

My tuner, who is reputable in the area told me to NEVER run synthetic in a Subaru. So I don't.

Um, Why? Turboed engines put more strain on oils, synthetics are proven to withstand higher temperatures for longer periods of times then mineral oils without breaking down..

I think people need to stop automatically doing what "reputable" people say to do without doing their own research. If you're tuner told you to spend $1,000 on a part would you?

[Blackfang]

Originally Posted by sbstiguy

It means that if you have a dealer that says you HAVE to use a certain oil they carry, by law they are mandated to give you that certain oil for free. Its a consumer protection act to keep dealerships from gouging prices and making you take unneeded or unwanted services.

You need to understand the Magnuson Moss act and what was written in front of you. You are clearly confused here

The act states that the dealer can not tell you you have to use their oil and their filter. If they do, they must provide it free.

What did happen was the dealer did not recommend that the poster use Synthetic oil.

Two totally different scenarios here
The dealer is not forcing the customer to use their oil and filter. They are just saying it is not a good idea to use synthetic(which is BS btw).

[sbstiguy]

Originally Posted by Blackfang

You need to understand the Magnuson Moss act and what was written in front of you. You are clearly confused here

The act states that the dealer can not tell you you have to use their oil and their filter. If they do, they must provide it free.

What did happen was the dealer did not recommend that the poster use Synthetic oil.

Two totally different scenarios here
The dealer is not forcing the customer to use their oil and filter. They are just saying it is not a good idea to use synthetic(which is BS btw).

No you misunderstood me. I was referring to a dealer telling you that you are required to use their oil and filter. And I know that the thread is about dealers saying to not use synthetic; however, you sounded like you were confused on the MM act, thats what I was attempting to clear up for you. But I understand how you could have misunderstood my statement. Oh yeah, I'd appreciate you not acting like a pompous the next time you reply eh?

[Blackfang]

Originally Posted by sbstiguy

No you misunderstood me. I was referring to a dealer telling you that you are required to use their oil and filter. And I know that the thread is about dealers saying to not use synthetic; however, you sounded like you were confused on the MM act, thats what I was attempting to clear up for you. But I understand how you could have misunderstood my statement. Oh yeah, I'd appreciate you not acting like a pompous the next time you reply eh?

I am very familiar with the MM act. Trust me

Your reply was right after mine where I asked someone else what does the MM act have anything to do with someone being told they should not use synthetic oil. Your reply came across and appeared to answer my post. Your reply doesn't have anything to do with being told you shouldn't be using synthetic oil. It was more about the MM act

This thread is about Synthetic oil, not the MM act.

Like i have said in this thread and others, you can use synthetic. I have used it with no problems, and has my customers. However, they do not go beyond 3800 miles between their oil changes.

[VROOM293]

If you're tuner told you to spend $1,000 on a part would you?[/quote]

No,but jumping off a bridge isnt out of the question.


Thats why this thread is albeit as entertaining as watching 20 dwarfs taking turns doing hand stands on the carpet[say that 10 xs real fast] raises my curiosity of the NON SYNTHETIC being recomended at all.
Those of us who can read[maybe not write haha]know what the manual sais in terms of recomended oil.
What bothers me is that my manual is not 100% specific to my 07 sti[which pisses me off]it clusterfuks w/another subi [not sti or xt]model .

This whole issue calls for me to e mail [in 5 min. from now] a pal @ SOA cherry n.j. executive head quarters [woooohoooo vroom & his big wig dropping]to ask this very question with all the variables included.i.e.synthetic or not assuming the driver of STI is not an idiot and is in agreement with the recomended 3750 [maybe earlier for paranoid suckers like me].
Also,since my little buddy[skipper refers to giligan] over at SOA is also an sti owner and operator im going to ask this question off the record as you guys know what the official answere would be as he is obligated by the powers of FHI ...''Suburu of America welcomes your questions.Please contact your stealerships service dept. as they will best answere any and all questions you may have concerning your canyon dragon''.Thank you sincerely,
Ben Dover 3rd assistant to the assitant of the secretary of executive in charge of vancouver import hub but in cherry hill new jersey usa.

[bigfathuero_sti]

ive used amsoil, quaker state, mobil, castrol, lucas racing, royal purple all synthetic with many different oil filters and combos. All changed at 3k or slightly over all with no problems.

[MRGLASS]

taken from the owner's manual (05) page 11-18.....

Synthetic oil
You can use synthetic engine oil that meets the same
requirements given for conventional engine oil. When
using synthetic oil, you must use oil of the same classification,
viscosity and grade shown in this owner’s
manual, and must follow the oil and filter changing intervals
shown in the maintenance schedule.

[santacruz02]

I think if you havn't read the thread "everything about oil" your just kidding your self with the beleiving what other people say stuff. a bunch of you know what the hell you saying, the rest idk what. For your on info read that thread its a bit long but FYI its got gobs of info on the differnt types of oil and weights vs temps and ambient temp outside. If I knew how to post a link I would but i don't. Sorry.

[Bownse]

In the US the Magnason-Moss Act protects owners from the former practice of mfgr's mandating the use of their labeled products and service. My original reply was to some of the info in the TSB that seems to be saying to only use Sub-branded coolant instead of silicate free coolant that meets certain standards. As for not using synth oil, I'd have to agree that it's the people who believe the marketing wonks and don't change their oil often enough. It's not just the viscosity but how the oil is used to move contaminates and dirt away from the motor. Even a good-quality oil can load up and become abraisive to the components of an engine.

After many performance motorcycles (which are typically more stressed than auto engines and often share the motor oil as a lube for a wet clutch system), I have never had a problem with a good quality synth but I change at the same interval as dino oil unless on a long, highway trip (less stop and go). I look at the extra expense as a way to extend engine life instead of change intervals.

[boostedrex05]

[quote=FlyinbySTi;1600000]Apparently there is a TSB.... Bulletin # 02-101-07 date 02/28/07 But just like anything else it says that if it meets or exceeds the American Petroleum Institute quialifications then it will not cuase engine damage.

So I put the Amsoil back in and will keep driving it. I guess I'll just see if the CEL comes back or not and make a decision whether to swith back or not. They said for an 05' with 90,000mi on it, my car is looking really good, cleaner then some 20K STi's they see in there that made me feel good.

I'll let everyone know if

http://www.thel7.com/TSB/02-101-07.pdf







OMG who ever wires in a A/F controller like that needs to take there car to a professional.

[toogood]

some good responses and some...wow...royal purple FTW