This thread has been sullied by repetitive bare assertion fallacy undermining productive debate.

 

Throughout the years, and owning far too many vehicles, I’ve learned that if you want to enter into a möbius loop of bantering and bickering all you need to do is discuss:

• Oil and fluid brands,
• oil and fluid change intervals,
• and tire brands.

It never ends.

 

And premium vs regular gas...

 

So true.

Spent over 30 years in Strategic Marketing & Planning with International Manufacturers.

I look at everything through that lens including oil and filters.

OEM's (Original Equipment Marketers) focus on the leased vehicle customer.

Everything focuses around them.

They want a 36mth+ lease and they don't want to spend much on maintenance.,

Therefore, the 10K oil change comes into existence.

To be competitive, they must offer 10k+ oil changes as part of that lease agreement.

So they do.

The "Buy and Hold" customer is a low priority for them.

So forums like this exist as Toyota is not going to spend much time on them.

If you're going beyond 5 years and 60k, your needs are vastly different from the lease buyer.

10 years and 100K, you're on your own. A couple blurbs in your owners manual and that's it.

I assume "Club Lexus" is for the 60K+ owner.

Therefore, oil and filters are much more important topic.

Same for Trans, Transfer case, Differential, etc fluids.

Puro-Boss, Amsoil, Royal Purple, etc focus on the "Buy and Hold" buyer.

The more conscientious, monied, car owners. That's their niche.



.

 

A well done test on oil filters:

You Tube

 

Hi, I just had my oil changed & want to reset the reminder. I found how to reset using a date but I would like to set the reminder using milage as the guide. Is that possible on my RX 350/2022? Thanks

 

CCN strikes again with an updated maintenance schedule video.

 

@GoBose I just changed my oil on my Mazda 4 cylinder turbo (255 hp) with my mentor that taught he me how a few years back. He commented how dirty the oil was, and to be fair to him it looked pitch black. However I was surprised because I was following his advice on changing the oil every 5,000 miles (manual says 7,500 miles).

I don't have a Lexus RX, but plan on getting one soon. What do you recommend me to change the oil at what interval? For a 4th Gen Lexus RX 450h hybrid (308 horsepower with a 4,740 lbs weight)?

 

Yet for over 40 years and 3.6 million kms in a number of vehicles, oil changes have been done at 10K and 15k (KMS) and zero issues with any of my engines. A couple of cars had 300K on them, others in the mid 250s, others around the 200k mark plus numerous other vehicles. These are not your old GM, Ford and Chrysler products, all my cars have been Japanese and most made in Japan.

By the way Lexus states 15K oil changes EXCEPT in certain conditions where they say 7,500, so it's not purely 15k for all cars all the time. How and where they are driven makes a big difference.

 

Oil is cheap, motors aren't. I'm not screwing around with 10k miles.

 

Im sure the 10k oil change will work, but you never really know. I just go with 5k, its cheap insurance especially if you do it yourself. 5 bucks for toyota filter and maybe 30 bucks for decent oil. If you follow the severe service intervals that would be the safest. You dont have to but it wont hurt.

 

Cheap oil is cheap. Cheap oil and short OCIs should be obvious. Quality synthetics will provide superior service over extended intervals.

I have documented proof even a 14k OCI with a couple of track weekends is no worse than short intervals. The only reason to go short (5k) is because you plan to keep the vehicle a long time, and that's why I do my cars on a 5k interval now. If you look at my results, you'll see iron tracks with mileage, and more iron means more abrasive. In the grand scheme of things, I have 225k miles on my IS F, and it still runs extremely well, does not burn significant oil, and continues to give me surprisingly good fuel economy for a 5 liter V8 in a 3800 pound car.

 

Look up 10k mile oci on tiktok and you will see sludge monsters. Cold weather and short trips is a certified disaster at 10k. By the way, I use max-life full synthetic, not a cheap oil.

 

I think not all cars will end up with sludge an oil burning and sludge, but it would be hard to tell, so I just take the risk. The 5k oil change cost is ok for me. Oil analysis can help you see about wear and oil life, but it cannot tell you whats going on with the oil rings. If they sludge up and score the cylinder you can start burning oil.
The standard 10k change frequency is really just if you drive long freeway trips often. Idling in traffic, winter driving, especially short trips put you into severe service interval.

 

👍 My vehicle manufacturer and oil manufacturer both say 10,000 miles. I have done 10,000 miles changes on six Lexus's for one million miles. Of course no engine problems. Want more proof. Two guys out on YouTube have 1.5 million miles on their Tundra's. Both when ask said original engine and I change the oil every 10,000 miles.