Moving from 0W-20 to 5W-30 in late model Toyotas

[ARCOgraphite]

Just out of curiosity, I asked my dealer service advisor if he would put in a 30 weight oil (because I was planning on towing in the summer heat) when I came in for a toyota care interval. He said it would most likely void my warranty but he would have to check on it. I would have to sign a waiver at the very least because the "oil passages are very narrow and it could cause oil leaks" LOL! Daddy government got them all gaslit pretty good!

Service writers are typically worthless. Talk to the Service Manager. I did befriend a good Writer a few years ago recently at the VW dealer near me, I think even he was getting tired of the poor management and passive abuse of the service and parts side.

Back when Subaru was pushing using only their Genuine synthetic oil (Idemitsu USA which is very good BTW) We had an argument over using conventional lubricants; that "Synthetic" was not a specification in any way, I showed him a "hidden" statement in the O.M. about using conventional.

 

[Triple_Se7en]

The move from 0w20 to 5w30 would explain the less consumption issue.
This typically happens when @100 viscosity jumps 1 to 1-1/2 numbers or more.

 

[ARCOgraphite]

That pennzoil platinum 5w30 has a low flash point and burns off easy compared to other brands

Data to support? That statement doesn't make sense with GTL basestocks.

Unfortunately PQIA is not asking for Kurt's Noack to be included in their latest round of testing.

Last comparative data I read from PQIA - and it's apple and oranges from three years ago -
was:
Quaker State UD 5w20 - 7.1%
Mobil 1 AP 5w30 - 8.5% (ASTM D5800)

 

[MalibuRam65]

Data to support? That statement doesn't make sense with GTL basestocks.

Unfortunately PQIA is not asking for Kurt's Noack to be included in their latest round of testing.

Last comparative data I read from PQIA - and it's apple and oranges from three years ago -
was:
Quaker State UD 5w20 - 7.1%
Mobil 1 AP 5w30 - 8.5% (ASTM D5800)f

The Data is on the Pennzoil web you look look up there PDS and compare to the rest you are more than welcome to look it up . PP 5w30 has the lowest flashpoint and the complaints of the burn off are well known especially on this site.

 

[GMFan]

Not a Toyota but my Mazda calls for 0W20 and I switched from using exclusively using 0W20 at 150K miles to a 5W30. My car now has 200K on it without issue. Haven’t noticed any difference or fuel economy difference.

I carry lots of heavy tools and equipment in my trunk and I run a lot of highway. I figured a 5W30 couldn’t hurt at the mileage it has on it now.

 

[ARCOgraphite]

"The force is weak with this one"

 

[ARCOgraphite]

The Data is on the Pennzoil web you look look up there PDS and compare to the rest you are more than welcome to look it up . PP 5w30 has the lowest flashpoint and the complaints of the burn off are well known especially on this site.

True, That. My Subaru drank PP like it was hot wonton soup. n/k

Don't think it was related to FP. Which is typically the volatile DP carriers and seal conditioners. Once these fractions boil off, the usage often stabilizes.

NOACK is a better indicator, but the base stock grade blend and the VM loading are more likely in play here.

 

[BrainThicknessVariation]

Sigh…time to screenshot my Toyota owners manual again…

I’ve been running 5W30 in the Tundra for several years. There is no measurable difference in MPG, and my owners manual says this:

View attachment 193923

Then, there is this thread, asking the same question, which eventually had to be moderated…

https://bobistheoilguy.com/forums/t...s-and-canada-vs-0w-20-run-5w-30-right.367260/

You are not going to hurt your engine running a 5W30.

It also says if I put 5w-20 in, to replace it with 0w-20 at the next oil change

I agree, though. Audi have something similar in their manual, which states in no uncertain terms:

"However, if engine oil viscosity grade SAE 5W40 is not available, you can also use viscosity grade SAE 5W-30 or SAE 0W-40 as long as it meets Audi oil qualityy standard VW 502 00 specifications ."

There's also this, from a UAE-version of a Lexus 3IS:

And according to the 3IS forums, 5w-40 is used in Singapore.

 

[BrainThicknessVariation]

The owners manual in Toyota clearly states that during extreme conditions a high viscosity may be used.

"Extreme loads" (towing) or high speeds (track). But I get your point.

 

[kschachn]

It also says if I put 5w-20 in, to replace it with 0w-20 at the next oil change

Because that is the oil that was used for the EPA fuel economy certification (including winter rating). The automaker cannot recommend another grade.

"However, if engine oil viscosity grade SAE 5W40 is not available, you can also use viscosity grade SAE 5W-30 or SAE 0W-40 as long as it meets Audi oil qualityy standard VW 502 00 specifications ."

Because the criteria for the VW approval is based on HT/HS. An oil with 502 00 approval can be either grade.

 

[Triple_Se7en]

I saw bottles of 0W-8 at the Toyota dealer last weekend.

That sight would awaken my Atrial-afib ablation.

 

[Triple_Se7en]

It also says if I put 5w-20 in, to replace it with 0w-20 at the next oil change

I agree, though. Audi have something similar in their manual, which states in no uncertain terms:

"However, if engine oil viscosity grade SAE 5W40 is not available, you can also use viscosity grade SAE 5W-30 or SAE 0W-40 as long as it meets Audi oil qualityy standard VW 502 00 specifications ."

There's also this, from a UAE-version of a Lexus 3IS:
View attachment 232810

And according to the 3IS forums, 5w-40 is used in Singapore.

How many Snowballs get thrown in Singapore every year?