Lexus RX330 Correct Oil and Interval

[rcy]

Right. But like I stated, the Highlander had the same engine and the Highlander is in the chart.

If you look at the bottom of your side view mirrors on your Lexus, you see TOYOTA proudly stamped in the plastic (at least mine have it). Believe me, that's a TOYOTA engine in your Lexus...the same one in the much cheaper Highlander.

 

[Daryll]

Right. But PERHAPS Toyota tweaks different engines for different vehicles. It just seems suspicious that there is no similar chart for Lexus vehicles.

 

[hypervish]

Originally Posted By: Daryll
By the way, maybe someone could explain, in layman's terms, why 0w-20 would also be ok where 5W-20 is ok. What's the real-world difference between "o" and "5".


Basially the 0 means better flow in cold starts, because it's thinner. Once warmed up the oil will be a 5 weight.

 

[Daryll]

Well, I finally got my analysis results (don't just put stamps on the sample like I did) and I am disappointed. Maybe some of you can comment, as I am a newbie to Mobil 1 and longer-than-5000mi oil changes. Blackstone is saying my 5900 mile MI oil sample indicates I need to change it!

Here is what Blackstone said:

Universal averages show typical wear for this type of engine after ~6,100 miles, so your wear metals are a little higher than average, but only lead (from bearings) is high enough to highlight. Silicon or sodium may show the cause; neither one is an additive in Mobil 1, so unless these are residual from a
previous oil, silicon might show dirt and sodium might show antifreeze. Neither is a big problem yet, but better to catch it early, so check the air filter and watch for a coolant leak. The TBN is good, at 2.8 (1.0 is low). Change this oil and check back in 6,000 miles.

 

[CATERHAM]

Originally Posted By: hypervish
Originally Posted By: Daryll
By the way, maybe someone could explain, in layman's terms, why 0w-20 would also be ok where 5W-20 is ok. What's the real-world difference between "o" and "5".

Basially the 0 means better flow in cold starts, because it's thinner. Once warmed up the oil will be a 5 weight.

I think you meant to say, once up to normal operating temp's the 0W-20 and 5W-20 will have the same viscosity.

To elaborate further, a 0W-20 oil has a higher viscosity index meaning it's lighter at all start-up temp's, even in the summer.
A 0W-20 is more than OK, it's a superior lubricant grade to the
low VI 5W-20. Additionally all 0W-20's are synthetic or at least syn' blends.

 

[hypervish]

Originally Posted By: CATERHAM
Originally Posted By: hypervish
Originally Posted By: Daryll
By the way, maybe someone could explain, in layman's terms, why 0w-20 would also be ok where 5W-20 is ok. What's the real-world difference between "o" and "5".

Basially the 0 means better flow in cold starts, because it's thinner. Once warmed up the oil will be a 5 weight.

I think you meant to say, once up to normal operating temp's the 0W-20 and 5W-20 will have the same viscosity.

To elaborate further, a 0W-20 oil has a higher viscosity index meaning it's lighter at all start-up temp's, even in the summer.
A 0W-20 is more than OK, it's a superior lubricant grade to the
low VI 5W-20. Additionally all 0W-20's are synthetic or at least syn' blends.


Yes, that's what I meant. Didn't come out right, I suppose. LOL

 

[Artem]

Post the used oil analysis report. I wanna see it.

 

[Daryll]

I just posted it under the used oil analysis section. I plan to get the oil changed tomorrow with another fill of the same stuff...Mobil 1 5W-20 and retest after another 5000-6000 miles. I would appreciate any suggestions.

 

[Daryll]

Originally Posted By: CATERHAM
A 0W-20 is more than OK, it's a superior lubricant grade to the
low VI 5W-20.


Then why did Toyota put out a TSB that "retroactively" allowed some engines that previously required 5w30 to use 5W-20, but did not mention 0W-20?

 

[rcy]

Because the TSB is from 2006, before Toyota had their own brand of 0w20.

You're really overthinking this. You can run 0w20, 5w20 or 5w30 in the vehicle. Pick one and happy motoring.

 

[Daryll]

Yeah, probably!

 

[rcy]

I just fired off another email to Lexus Canada asking if there was a similar chart for Lexus vehicles. Failing that, I asked if 0w20 could be run in a 2006 RX330 / RX400h.

I also told them NOT to tell me to follow the owner's manual recommendation, as that manual is now five to six years old and oils have changed.

I also mentioned the TSB about 5w20, asking if there was any update, since that is also from 2006.

 

[lexus114]

^^^curious to see what they have to say.

 

[rcy]

So far this..

"Thank you for your recent correspondence. Please be assured we are currently researching your concerns. We apologize for the delay, a response will be forthcoming. Thank you again for taking the time to contact us. Sincerely,"....and someone's name who is probably wondering if I'm a lunatic of some sort.

So I guess they took my 'don't quote me the manual' to heart and are talking to some engineer...I hope...

 

[lexus114]

Originally Posted By: rcy
So far this..

"Thank you for your recent correspondence. Please be assured we are currently researching your concerns. We apologize for the delay, a response will be forthcoming. Thank you again for taking the time to contact us. Sincerely,"....and someone's name who is probably wondering if I'm a lunatic of some sort.

So I guess they took my 'don't quote me the manual' to heart and are talking to some engineer...I hope...




Either that or......

 

[Daryll]

Originally Posted By: rcy
I just fired off another email to Lexus Canada asking if there was a similar chart for Lexus vehicles. Failing that, I asked if 0w20 could be run in a 2006 RX330 / RX400h.

I also told them NOT to tell me to follow the owner's manual recommendation, as that manual is now five to six years old and oils have changed.

I also mentioned the TSB about 5w20, asking if there was any update, since that is also from 2006.





Excellent. Please be sure to tell us what they say. I'd bet they refuse to give a specific answer.