Good morning everyone,
So I know this can be a somewhat controversial topic and is often a topic filled with a lot of bias, and very little facts, but I am pulling out my own hair trying to figure out which 0W-20 oil to use in my car. So in my last oil change at 4500 miles I used Pennzoil Ultra Platinum 0W-20 and it's been working fine. The main reason for choosing it was that there was a $25 Mail In Rebate and the 15 year powertrain warranty was certainly very appealing. However, as of late, it is either sold out everywhere or it is ridiculously priced because of scalpers reselling it. So I am branching out trying to find a readily available oil that I can use for years to come without any issues. I would love to hear everyone's insight on what they would prefer. All of these options bear an GF-6A rating and an SP Service Category so they are as Apples to Apples as can be.

1. Toyota Genuine Motor Oil: $36.48 for a case of 6 Quarts. It's the same thing our dealers are supposed to be using (although theirs come in 55 gallon drums) and I would certainly hope that it is readily available at any dealer. I understand that it is made by Exxon, but according to my research on other forums, it is not the same as simply purchasing Mobil 1 off the shelf as it has a special formulation requested by Toyota that has a buttload of moly compared to the off the shelf variants of Mobil oil. Some have said it's a great thing, while some believe it is not. The jury is still out on that one. I did however notice that compared to the PUP in my car, the TGMO in our Highlander was a lot more liquidy and it was dripping off the dip stick easier.
2. Mobil 1: Roughly $15 for a 5 quart jug after mail-in rebate. I am considering either the Extended Performance or the Advanced Fuel Economy variant. My Oil Change Interval is 5,000 miles so I won't use it for the 20,000 miles that EP is rated for, but if it is a better formulation I don't mind using it at all.
3. Pennzoil Ultra Platinum: $25 for a 5 Quart Jug in a normal world, $49 currently. If it comes highly recommended I will try sourcing it somehow but as stated, I'm flexible on what I should use.

I would love everyone's feedback on that. I will be using this oil in my '22 IS350, but I intend to also use it in our '22 Highlander V6 as well as our '16 Corolla. While I know that some advocate for using a higher weight oil such as 5W-20, that is not something that I am interested in doing as I want to minimize the risk of voiding my warranty as much as possible, especially since the manual calls for 0W-20 GF-6A oil. Thank you all!

 

For my 21’ IS350 I will be using Toyota oil.

 

All those are fine. As I’ve gotten older my philosophy has gotten to, “use a quality oil plus filter and don’t overthink it”. Unless you want to geek out on oil, then go to Bob is the Oil Guy forums.

 

I'm using Castrol 152D7D Edge Extended Performance 0W-20 and if it is not available then Castrol 03124 Edge 0W-20 Advanced
IS350 2021+

 

There’s no right or wrong. My dealership used Mobil 5W-30 on my IS500.

 

Thank you all very much! I asked the same question on Bob is the Oil Guy and even they were telling me I was overthinking it. Get any 0W-20 from a quality brand, with the OEM filter, and call it a day. Especially since I’m doing a 5K OCI instead of the Lexus recommended 10k

 

Note that the IS 500 does not have the same oil requirements as the IS 350. 5w-30 is factory fill on the 500.

 

My point was that not even all dealerships use "Toyota" brand oil as mine uses Mobil, so there really isn't a standard. Any name brand oil will do.

 

True. Mobil 1 is a good product. I think it's fine for warranty purposes as long as the oil meets specs.

 

Motul 5W-30 on my IS350. 0W-20 was specified for the 2GR when the IS switched to the 2014 model year. The 2013 had the exact same engine, the only thing that changed was CAFE requirements. I know mine is the 2GR-FKS, it isn't that much different than the -FSE.