Technology

The U660F transmission in my wife's 2015 Highlander doesn't have a dipstick. Luckily that transmission is solid and easy to service anyway, you just need a skinny funnel to fill it.

It's a lifetime fluid! For the life of ur transmission! If it'll make it to 100k miles they could care less what happens after that. When your 16 odyssey needs a transmission at 130 are u gonna put 6k into it or go buy a other car?

PEBKAC.

This is a reactionary response, you're just arguing, slow down a bit.

Do you see a value in a check engine light that tells you something is wrong in between full inspections? This is similar, this is telling you there isn't enough oil and damage is occurring before you get a chance to inspect the dipstick.

It's not planned obsolescence unless they also make it unreasonable to service. We already expect to routinely service engines, and they are already very complex and full of sensors, sure this is adding to the complexity but it's relatively pretty minor.

The argument being made, and I agree with it, is that the benefits of an additional long-serving sensor way outweigh the con of having one additional sensor in your car. You get early warning before damage occurs, you get built in fraud protection when you're changing your oil at a shady chain, you eliminate a direct access port for dirt to contaminate the oil.

You would think an engineer would understand this.... I assume this is a decision from management.

That chronological duration is more of an estimate based on how much the "average" car may be driven and is just to give someone an idea of the frequency.

The standard for cars built for synthetic ("conventional" cars may have a bit more susceptibility to contamination, so they normally have shorter durations) usually usually go for 10-15k miles (~16-24k km). So going 30-45k miles in a year isn't really unheard of. (Some cars are much less, while others like company cars/taxis can be more than double)

I know it can last longer than that, but I think there is a benefit to doing so even if it doesn't need changed that often. It's the same reason I have my mechanic do my oil changes instead of doing them myself. It's so that they can look at the rest of the car and let me know about problems before they become a much more expensive fix. Kinda like going to a doctor for a yearly checkup and blood work.

I can fix almost anything on a car if I know what the issue is and have the shop manual, but I don't work on cars enough to know all warning signs or quickly diagnose things.

However, I do realize how difficult it can be to find a mechanic that is trustworthy, competent, and reasonably priced. I'm generally not a fan of dealership mechanics or the places that are dedicated to cheap oil changes. Not saying none of them have good mechanics, but it can be hit or miss.

Depends on how much you drive, and what the recommended interval is. If the interval is 7k miles, and you drive 18k in a year, yeah, you need to change the oil 3x/year.

It seems to me that counting the number of cycles each makes, and basing your intervals off that would make more sense than mileage. If I'm constantly running at high RPM, that should require more frequent oil changes in terms of mileage.