New 2023 Corolla and 0W-8 oil

bhvrdr said:
Dealerships don't approve or deny warranty claims. The manufacturer does. On large ticket items they require regional techs to inspect and any accompanying paperwork they request which may be everything from proof of maintenance to photos of the vehicle, to ECU uploads, etc
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Did you leave out lies?
 
nascarnation said:
Don't dealerships MAKE money on warranty work? I realize not as much as regular service repairs but unless you're overwhelmed with non-warranty business, why would a dealer work to make a customer unhappy when the warranty cost is borne by the vehicle manufacturer?
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Dealers do make money on warranty work.

The dealer has to submit a request to get an approval for the warranty work. Sometimes, the manufacturer will say they won’t pay for certain things on a certain car. Then the dealer has to go back and forth with the manufacturer and that takes time, and it costs money. Sometimes it can take months. And in my dealership, we have to give loaner vehicles to customers, and that costs money. The longer the repair takes, the more money it costs the dealer.

The manufacturer pays the dealer less for warranty work, compared to customer pay work, because the dealer can mark things up when the customer is paying, but when the manufacturer pays the dealer for a warranty work, it doesn’t get marked up.

So dealerships do make money from warranty work, but in certain cases, we also lose money. Dealers typically don’t like to do warranty work.
 
FTTSHO said:
I work at a huge ford dealership, and I know we will do anything we possibly can to void the warranty, and I mean anything. It’s the truth. I’m not a technician or a “lube tech”, I don’t do any hands on repairs, but I know the truth because I work for the service department and I know everybody that works at service. I do not put out my real name or ever give out my location on the internet, or even on social media because some dealerships do spy on their employees’ social media accounts. I work at a dealership that does this. I’ve had one coworker get fired for “talking s**t”on the internet, and for telling people the “secrets”. It’s sad, but very real.

Enough ranting, I’ll get to the point.

I highly doubt any dealership would go through the trouble of finding if the right oil was used, but the best thing to do is just stick to the owners manual and use the “recommended oil” until the warranty is over. It may not be the best thing to do for your car’s reliability or longevity, but it is the best thing to do if you do want to actually take advantage of getting the repairs done that are covered under the warranty, if you actually do need it.

To be honest, I probably would use 0w20 or even 0w30 so I can sleep easier at night, I’m not gonna lie, but 0w8 or 0w16 should be more than adequate for a daily driven Corolla.

A good thing to do is just get all the services done at the dealership until the warranty is over. If anything goes wrong with the engine, there’s no if and or buts, the dealership will have to repair whatever that needs to be repaired (that’s covered under the warranty) no questions asked. There are certain cases where crazy questions will be asked, but that’s a whole different topic.

0w8 will work just fine for a daily driven Corolla. I really don’t think Toyota would recommend 0w8 knowing the engines will be toast right after the warranty expires, or won’t last at least 300k miles. That’s just not Toyota. Any oil will work, but I personally don’t really see a need to use a different viscosity. I’ve heard in Japan, Toyota has been using 0w8 for a long time, and they seem to be doing just fine. In the US, we do lots of highway driving compared to Japan, and highway driving is said to be much easier on oil than city driving. Japan does a lot of city driving. I don’t think the engine will just flat out wear out any quicker just because 0w8 was used. I know those engines can still go 300k miles with 0w8, especially if the OCI was reasonable like 5k miles max.


Just my 2 cents
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Nope, not going to do it. I beat the heck out of my daily drivers. I will choose my viscosity. Without knowing bearing clearances on the 0w-8 cars and if the cam timing system is hyper viscosity dependent we can use Toyota's "allowance" of 0w-20 in the manual as approval of use. If Europe/Mideast specs are none CAFE and show use of 5w-30.

If bearing clearance have not been radically altered for 0w-8 I would go to 5w-30 and be happy there.
 
bhvrdr said:
Dealerships don't approve or deny warranty claims. The manufacturer does. On large ticket items they require regional techs to inspect and any accompanying paperwork they request which may be everything from proof of maintenance to photos of the vehicle, to ECU uploads, etc
Click to expand...
So-do they come from outside the dealership where the vehicle is located?
 
Mainia said:
If bearing clearance have not been radically altered for 0w-8 I would go to 5w-30 and be happy there.
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Bet the bearing clearance isn't any tighter than any other modern engine. The bearings are most likely wider to better accommodate the 0W-8.
 
CKN said:
So-do they come from outside the dealership where the vehicle is located?
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Yes they do. They are employed by the manufacturer. Look up regional tech, field service representative, field service engineers, warranty auditors. All employed by the manufacturer to make sure dealerships are putting in appropriate claims.
 
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Since it's been mentioned, but not posted, here's what the Australian manual says can be used in the Dynamic Force 2.0 engine.
Screenshot_20230604_101746_Drive.jpg


The chart changed in 2022 but as far as I know the engine is still the same.
Screenshot_20230604_102413_Drive.jpg
 
VolkswagenFox21 said:
Since it's been mentioned, but not posted, here's what the Australian manual says can be used in the Dynamic Force 2.0 engine.View attachment 159357

The chart changed in 2022 but as far as I know the engine is still the same.
View attachment 159358
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Charts like this shows that bearing clearance is not "designed arourd" oil viscosity. MOFT is always greater between two moving parts as the viscosiy increases, with other factors held constant. That's Tribology 101, and why thicker oil always provides more MOFT headroom and added wear protection.
 
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nascarnation said:
Don't dealerships MAKE money on warranty work? I realize not as much as regular service repairs but unless you're overwhelmed with non-warranty business, why would a dealer work to make a customer unhappy when the warranty cost is borne by the vehicle manufacturer?
Click to expand...
Warranty work doesnt pay that well, they do it cause they are required as a Dealer.
 
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