2019 Lexus GX460 (1UR-FE), Pennzoil Platinum 5w20, 4231 miles on oil

[sds911]

Second oil change on the GX460 (just sent in sample from 11/2020. I believe I used 5w20 per my notes, but UOA states 0w20. Also had added 1 bottle of Ceratec which increased moly and boron on this UOA. The GX is almost at 16,500 miles now and will be sending in another UOA sample in January 2022.

Also will post factory fill rear differential UOA on the gear oil uoa thread.

 

[Artem]

And this ladies and gents is why I’m a strong believer in flushing out the factory metallic break in soup early. I can’t imagine had the OP left the FF in for 10,000 miles just sanding down all those new bearings and cams.

 

[thunderous1335]

...

 

[Pelican]

And this ladies and gents is why I’m a strong believer in flushing out the factory metallic break in soup early. I can’t imagine had the OP left the FF in for 10,000 miles just sanding down all those new bearings and cams.

I always replace the FF at 1,500 Km (1,000 mi) have done so for as long as I've had cars and never had any engine problems (also dont do xtended OCIs)

 

[mahanddeem]

Lots of moly and boron!

 

[PimTac]

Lots of moly and boron!

Yes because he added it.

 

[sds911]

Why yes, I did.

 

[mahanddeem]

Yes because he added it.

Why yes, I did.

I now see, my bad.