There are hundreds of threads here discussing oil weight (now there's another one, LOL). You'll find a lot of opinions if you try the search feature or look at the list of popular topics.Hey guys,
2023 crosstrek 2.0l 6mt.
I've had it for a month now. It currently has 4,700 miles on it. I purchased the car with 0 miles.
When I do the first oil change, (After I run out of my 4 free dealer changes). I would like to switch to a 0w30 or 5w30 since I live in central Mississippi. It's hot out here.
It would also make me a little more comfortable with fuel dilution.
Will switching to a quality 0w30 or 5w30 void my warranty? (I use mobil1 in everything else.) I didn't really see any specifics in my manual regarding oil weight.
Well, there ARE things that can void your warranty. Using an extreme example, if you try to turbocharge the engine and it blows up, Subaru is not going to replace your engine under warranty. Using a different weight oil isn't one of those things.Google the magnusson moss warranty act. Voiding your warranty isn't a thing in the US.
And for the record, some US dealerships use 5w30 for everything, so if it caused warranty issues it seems like they'd not use it.
That would be grounds to deny a warranty claim for engine damage. They cannot legally void the whole warranty.Well, there ARE things that can void your warranty. Using an extreme example, if you try to turbocharge the engine and it blows up, Subaru is not going to replace your engine under warranty. Using a different weight oil isn't one of those things.
Correct, they may void the engine warranty if you try to turbocharge it but not the head unit. Seems like a no-brainer to me...That would be grounds to deny a warranty claim for engine damage. They cannot legally void the whole warranty.
I wonder if you had proof of the dealership using the "wrong" oil you could demand repairs beyond the warranty as the dealer had "damaged" the vehicle by not following proper oil recommendations? If this can be proven perhaps any body who had an hyper aggressive dealer attack their viscosity choice could be silenced by the proof that some dealers use the same/wrong viscosity. Probably never happen. Never heard of a(ny) dealer complain about a driver's multi viscosity oil causing the warranty to be threatened. Having a multi-viscosity lawyer might solve the problem if they tried. Again, the API rating in the little circle, that's probably something we always want to match or use the next highest rating.Google the magnusson moss warranty act. Voiding your warranty isn't a thing in the US.
And for the record, some US dealerships use 5w30 for everything, so if it caused warranty issues it seems like they'd not use it.
I can't comment on the warranty thing. However, in other parts of the world this same engine is spec'd to use heavier viscosities.Hey guys,
2023 crosstrek 2.0l 6mt.
I've had it for a month now. It currently has 4,700 miles on it. I purchased the car with 0 miles.
When I do the first oil change, (After I run out of my 4 free dealer changes). I would like to switch to a 0w30 or 5w30 since I live in central Mississippi. It's hot out here.
It would also make me a little more comfortable with fuel dilution.
Will switching to a quality 0w30 or 5w30 void my warranty? (I use mobil1 in everything else.) I didn't really see any specifics in my manual regarding oil weight.
www.mobil.com
When was the last time Subaru engines were spec'd for 5W-30? I don't think they have since the EJ engines. I believe the FB engines have always been spec'd for 0W-20.rtfm, it probably says 5w30 is fine if you don't have 0w30. mine does.
realistically, these engines ran on 5w30 in previous gens and not much has changed since
Do you think it's because of tighter manufacturing tolerances or meeting fuel efficiency standards?When was the last time Subaru engines were spec'd for 5W-30? I don't think they have since the EJ engines. I believe the FB engines have always been spec'd for 0W-20.
Yeah that seems like it would be a tough legal fight. It seems more likely that if you kept arguing with them about it maybe they'd give you something to shut you up.I wonder if you had proof of the dealership using the "wrong" oil you could demand repairs beyond the warranty as the dealer had "damaged" the vehicle by not following proper oil recommendations? If this can be proven perhaps any body who had an hyper aggressive dealer attack their viscosity choice could be silenced by the proof that some dealers use the same/wrong viscosity. Probably never happen. Never heard of a(ny) dealer complain about a driver's multi viscosity oil causing the warranty to be threatened. Having a multi-viscosity lawyer might solve the problem if they tried. Again, the API rating in the little circle, that's probably something we always want to match or use the next highest rating.
Yes.Do you think it's because of tighter manufacturing tolerances or meeting fuel efficiency standards?
