the rx just hit 90K and I noticed that it was low on oil. 3 Quarts later it is still low, what is going on. I have not noticed any smoke and have run mobil 1 every 5k since the 60k service and prior to this it was changed every 3500 miles. I have all the service records, it was 100% lexus service until 60k and now at toyota (no lexus dealer around here). Am I getting the slidge problem or could something else be wrong. there is no oil on my floor either. I purchased it with 29k from another clublexus member.

 

I used to have this same issue.

Try using a can of Restore oil additive (any Auto parts store and WalMart has it), use the 4 cylinder one, not the 6 cylinder one on your next oil change.

It could be some oil is seeping around the compression at 90K and that Restore should help.

I have same issue, Toyota dealers here (but not Lexus). Luckily, I have one hell of a mechanic in my uncle.

 

This is the link to that product, http://www.restoreusa.com

 

FYI here is Auto-RX restoring the compression on this Camry, which has the same 1mzfe engine as the RX300
http://theoildrop.server101.com/foru...rue#Post254499

 

That was my plan, maybe wait until after the oil change though. this stuff worked wonders for my dads old f-150 when I was a kid.

 

TunedRX300 is right...if Restore is liquid silver (actually it is purple ) then Auto-RX is liquid gold. The stuff is fantastic.