Many folks have different opinions about oil, seems most fair to the the car manual, especially since any warranty claim will likely depend on following their schedule.
The toyota maintenance schedule for the Camry specifies every 10,000 miles (16000km). Unless you: are towing, have a car-top carrier, carry heavy loads, drive less then 5 miles when cold, drive on dirt/dusty/muddy roads, drive on melted snow, have excessing idling/low speed drive, etc.
Also the Camry uses a somewhat unusual oil 0w-16, there is a more commonly available variety... but they recommend a full flush, replace the filter, etc when every you switch back to 0w-16.
A mechanic which has put gas equipment for my car said that this is CRAZY. Oil could bear 35K km, but not the oil filter. He said that car should have oil change at ~10K km.
If I were your mechanic I'd say that too. Heck, there is a whole industry that is working hard to convince you to change your oil every 3000 miles or three months.
The manufacturer incurs a lot of liability by setting the oil maintenance window so high. So I don’t think they would do that without data to support this requirement.
If the oil filter truly couldn’t last, then there would be many more failures. Which would be payable by the manufacture (either through warranty or class action law suit).
Based on this simple analysis, I believe the manufacturer docs vs. a mechanic with no skin in the game who also makes money from frequent oil changes.
Unless they know it will last 150k miles and don't care beyond that. Or put more cynically, have set the window for artificial obsolescence of their vehicles early enough to goose sales, but late enough that their reputation and liability don't take a hit.
That’s why I mentioned class action suites. If a manufacturer did that, it would be a dream for a law firm as it would be pretty easy to show the damage of doing 5 oil changes over 150k miles as recommended (vs 15 or 30 or whatever). Of course consumers would get $5 or something small, but a law firm would get millions that would be paid by the manufacturer.
Again, hard to know. But when the manufacturers have something to lose from being wrong and random mechanic who sells oils changes doesn’t, it makes it easier to man vehicle maintenance.
Most Toyota engines have 10k oil change intervals and many dealers now offer free oil changes for life. Over the past five years, the only maintenance I've paid for on my Toyota has had four sets of wiper blades, a 12v battery, and tires. It didn't even need the tires, just the stock Goodyears are garbage and I didn't want to drive another snow season on them.
All-in maintenance costs were in the neighborhood of $700 over five years.
A Camry at 5 years needs none of that. Plugs last until 120k, fuel filter might actually be lifetime, chain drive timing, which is recommended change at 100k but most people don't, because most people who own Toyotas don't do maintenance, air filter should be every 20kish, but won't hurt the average car too much to go 120k.
How would you drive in order to renew a clutch after 5 years? Usually a clutch lasts well beyond 10 years.
Costs for break pads and and discs are also very low, unless you have ceramic break.