Wow, this really seems to be a religious matter to some folks.

Let me ask, if the engine manufacturer says 10K, then why not go with what they say? Do you think they would do ANYTHING that could cast a negative light on their engine reliability down the road?

From my perspective, the only time it would make sense to adopt your own schedule is if you've sent in an oil sample to a lab and they've come back with a recommendation for more-frequent changes. Yes, I know, we all changed oil far more frequently 30 years ago. Oil is far different now. Synthetic oil is even more different.

Sigh.

 

Good question. I had a luxury vehicle where I became friends with the Service Manager, and he told me not to change my engine oil based upon the percentage of oil life left as indicated on the instruments, but to change it at a much early percentage as they were finding out that it should be changed earlier. Did I ever receive an acknowledgment that I should do so from the corporation? No. I did as the Service Manager told me and that vehicle lasted about 220,000 miles. BTW, I did the oil changes myself. There are so many things that can go wrong within an engine that can accelerate engine wear.

Below are excerpts from my 2017 Lexus RX 450h owner manual. You can see that they recommend a shorter interval for special operating conditions (which are easily met in Southern California traffic, and that Lexus has calculated the lifespan of my 2017 RX 450h at 180 months or 150,000):




Below is the last recommended scheduled maintenance entry.

 

Exactly mate.

 

On the other hand, I have a neighbor who never changes the oil. He keeps the car for around 100,000 miles and then moves on. He has never had a problem. I get from his experience that changing the oil is not a big deal and 10,000 miles would be OK if not over kill.

 

Kinda off topic, but AMSOIL has a free shipping promotion over this weekend, for orders over $50 -- not sure how long it will last. 6 qt. of Signature Series 0W-20 for your RX will run $59. Promotion code FREESHIP.

 

Hi all,

just curious to know which 0W-20 oil brand do you guys prefer. Asking in regards to my 2019 RX350 F Sport.

 

Amsoil. You can order online. You need one 1-Gal. and two quarts.

 

Really, Amsoil is the best imo. Been using it for over 25 years.

 

There are a lot of oil comparisons online, but honestly everything is really close. Lexus is not picky.

Mobil 1 has a good performance/price ratio.

 

I wonder if brand makes any difference. I have a neighbor who has a messenger service - he uses WalMart Supertech oil and his vans last in excess of 300K miles.

 

Those store brands mostly comes from the major brands. I use Mobil-1 in my Chevy v8 (LS3) engine, and use whatever Lexus put in it while under warranty Amsoil is an excellent oil though .
How long you change and use the correct weight according to the manual it probably doesn't matter much imo. Another owner's preference controversy like fuel grades & tires.

 

Those vehicles run almost continuously, driving out the organic acids that form during startup and warmup, and skipping lots of cold starts. It's an easy, long life for the oil and the engine. Piston rings scraping cold unlubricated cylinder walls is rare, statistically speaking. Compare that to my daily driving -- 8 starts per day is not unusual, and it often doesn't run for more than 20 minutes at a time. That's the worst possible scenario for the oil and engine. So if your neighbor changes out his Walmart oil with reasonable frequency, his cars will last far longer than mine, for sure.

 

I'm still not sure oil brand makes a difference even in your case.

 

Mike, I will happily concede that the vehicle usage profile is substantially more important than the brand of oil in determining the likely life of the engine.

 

To answer your question, no. The cheapest, Dexos approved, SN plus rates 0W-20 will work wonderfully with our engine. SuperTech is actually a great oil to use, along with Kirkland Signature when it comes to private labels. I don’t want to bore anyone with oil but you can learn a lot on BITOG.