Toyota's legendary V8 has a problem
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From: Ohio
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My mechanic told me never to go 10k OCIs in my LS460s years ago.
To be fair comparing the UR to UZ, nobody ever suggested that you could do 10k OCIs in the UZ, if everybody was running around doing 10k OCIs with UZ engines you have no idea what issues you would have.
My MB Mechanic also said no 10k OCIs in the Mercedes either. He said the valve cover issue I had at 50k miles was caused by clogged oil separators which wouldn't have happened with 5K OCIs. I did 10k in the S560 because I knew I wouldn't keep it where the LS460s I always entertained the idea I might. I will do 5k OCIs in the S580. I'm actually considering doing the in between 5k change myself just for giggles.
In general 10k OCIs are just not a good idea on an engine you want to keep for 100k+ mileage.
To be fair comparing the UR to UZ, nobody ever suggested that you could do 10k OCIs in the UZ, if everybody was running around doing 10k OCIs with UZ engines you have no idea what issues you would have.
My MB Mechanic also said no 10k OCIs in the Mercedes either. He said the valve cover issue I had at 50k miles was caused by clogged oil separators which wouldn't have happened with 5K OCIs. I did 10k in the S560 because I knew I wouldn't keep it where the LS460s I always entertained the idea I might. I will do 5k OCIs in the S580. I'm actually considering doing the in between 5k change myself just for giggles.
In general 10k OCIs are just not a good idea on an engine you want to keep for 100k+ mileage.
nevertheless i still do 5k mile intervals for both cars, despite the 9 qt capacity in the benz
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i have noticed that many of the cars that claim to have 10k oil changes do at least have bigger oil capacities... the W211 E320 for instance holds 8.5 qt which is a lot for a 3.2 n/a engine, interestingly the E500 holds ½ a quart less 🤔
nevertheless i still do 5k mile intervals for both cars, despite the 9 qt capacity in the benz
nevertheless i still do 5k mile intervals for both cars, despite the 9 qt capacity in the benz
Lead Lap
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Its not about being smarter than the engineers, its about understanding why the engineers suggested 10k OCIs. Its about balancing the demands of maintenance with the projected lifespan of the vehicle. Car will last 100k miles with 10k OCIs...will it last 200k? 300k? Most people don't care...but if you are somebody who wants to get 200k....300k out of an engine...even the engineers say 10k OCIs are a bad idea.
Don't listen to me, listen to this guy who engineered the Nissan GTR as he's interviewed by another automotive engineer:
https://www.youtube.com/watch?v=FlmTPH_5UmQ
https://www.youtube.com/watch?v=AdqHYfMJSi4&t=20s
For instance we know the UR engines burn oil as they age and they experience this failure discussed above...in my case the oil separators are known to clog and that leads to that incredibly painful and expensive valve cover gasket repair I dealt with at 50k miles...that was 24 hours of labor, the car was off the road for a week and if I were paying the cost was $9,000. If doing an OCI every 5k miles could avoid that...why wouldn't I do that?
If you're not going to keep it long term, and you don't have a specific scenario like I did with the oil separator issue...then sure just do 10k OCIs.
Don't listen to me, listen to this guy who engineered the Nissan GTR as he's interviewed by another automotive engineer:
https://www.youtube.com/watch?v=FlmTPH_5UmQ
https://www.youtube.com/watch?v=AdqHYfMJSi4&t=20s
For instance we know the UR engines burn oil as they age and they experience this failure discussed above...in my case the oil separators are known to clog and that leads to that incredibly painful and expensive valve cover gasket repair I dealt with at 50k miles...that was 24 hours of labor, the car was off the road for a week and if I were paying the cost was $9,000. If doing an OCI every 5k miles could avoid that...why wouldn't I do that?
If you're not going to keep it long term, and you don't have a specific scenario like I did with the oil separator issue...then sure just do 10k OCIs.
Striker and SW are correct, I strongly believe it's to get the car through the warranty period and then some. There are so many mechanics that have done teardowns that say this same thing. You definitely can reach 200k following the 10k intervals, but you don't actually know the wear on your engine unless you stick a scope down there or do a teardown. Your car may run fine, but doesn't mean there is no excess wear you just don't know about.
To many people who work on cars have told me 10k is not a good idea. 10k oil changes are very convenient comparing to having to take your car in at 5k and it's definitely a selling point. What I would do if I were you is send one of your samples to a lab like Blackstone and have them do an analysis. If they find no excess wear and the oil remains in good condition, then you know 10k is fine
To many people who work on cars have told me 10k is not a good idea. 10k oil changes are very convenient comparing to having to take your car in at 5k and it's definitely a selling point. What I would do if I were you is send one of your samples to a lab like Blackstone and have them do an analysis. If they find no excess wear and the oil remains in good condition, then you know 10k is fine
After towing a 8.5 x 24 enclosed trailer. 1,400 mile trip. 10k oil changes. Toyota OEM oil filters. Once or twice went 15k between oil changes. I’ve never added oil. Telling you what’s worked for me. The only reason why I sold it is because I was running out of room to park it. I kept the 08 along with the 1794 until time to renew the registration on the ‘08. My 1794 gets driven 1 mile per week unless I’m towing to the track. My buzzy 152k mile Prius on its factory brakes gets the same 10k mile treatment. Have a 2008 6.0 3/4 Silverado approaching 200k that use on the farm and pulling trailer around town gets the same 10k treatment. And it’s a CHEVY!!
Your car went in for service because it’s a Mercedes. Been there. Done that. None of my vehicles have extended warranties on them. If I were a mechanic I would tell you bring your car in more often as well.
A Scope? Blackstone lab? ☝️
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i have noticed that many of the cars that claim to have 10k oil changes do at least have bigger oil capacities... the W211 E320 for instance holds 8.5 qt which is a lot for a 3.2 n/a engine, interestingly the E500 holds ½ a quart less 🤔
nevertheless i still do 5k mile intervals for both cars, despite the 9 qt capacity in the benz
nevertheless i still do 5k mile intervals for both cars, despite the 9 qt capacity in the benz
My 2ZR 1.8 spec is 4.2 litres spec vs my 2AZ 2.4 which is 3.8 litres using the same oil spec.
Last edited by Toys4RJill; Sep 8, 2024 at 07:14 PM. Reason: …(using the
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Originally Posted by BayeauxLex
Your car went in for service because it’s a Mercedes. Been there. Done that. None of my vehicles have extended warranties on them. If I were a mechanic I would tell you bring your car in more often as well.
No comment about the vehicle engineers in those videos that agree with us? Got it! We’ll just pretend those weren’t posted. Who’s the one saying they know more than engineers now?
Lead Lap
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My bad I thought you were referring to your Mercedes that went in the shop. I’m about to watch them now. Then I’m going in the garage and change brake pads get the car ready for the upcoming track day where I won’t see any Audis🤣🤣
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‘I truly don’t know. (And don’t care). But I would have a hard time believing that a driver could get a helmet on inside an S3 Audi. I wonder if it even comes equipped with track ready tires, my assumption is all seasons. I even think the Honda R is 16MPH for the top speed. Ever seen any EVs at the track?
Lead Lap
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Lead Lap
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No🤥
But I will be looking for them 👀
Put it this way, I’ve seen more Teslas on track than I’ve seen Audis and I’ve seen 2 Teslas. Give me a sec. I will look up and see what cars are registered for the event.
But I will be looking for them 👀
‘I truly don’t know. (And don’t care). But I would have a hard time believing that a driver could get a helmet on inside an S3 Audi. I wonder if it even comes equipped with track ready tires, my assumption is all seasons. I even think the Honda R is 16MPH for the top speed. Ever seen any EVs at the track?
Lead Lap
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Advanced
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From: California
That's dumb, different brands engineer cars different ways, for certain amounts of longevity and post-warranty maintenance.
You're going to tell me, for example, you'd listen to Audi's engineers/service intervals saying the transmission is lifetime fluid when the manufacturer ZF themselves recommends it to be changed every 60k? No.
You're going to tell me, for example, you'd listen to Audi's engineers/service intervals saying the transmission is lifetime fluid when the manufacturer ZF themselves recommends it to be changed every 60k? No.