2GR-FKS 0w-20 or 5w-30?

I love this motor. An easy 25 mpg with over 300 hp. Went with M1 0-20 EP while under warranty and now M1 5-30 EP for most of the year. Will run the 0-20 for the winter oci. Wife does 20,000 a year in her Highlander. I struggle with buying the new 2.5 turbo that replaced it that gets worse gas mileage by many accounts. Maybe with the recent epa rollbacks Toyota will bring it back.
 
This is for the 2ar and 2gr. You can use up to 50 grade. If it was mine any euro 30/40.

2ar2gr0w-20-20w-50pdf-1.webp



2ar2gr0w-20-20w-50pdf-2.webp
 
I love this motor. An easy 25 mpg with over 300 hp. Went with M1 0-20 EP while under warranty and now M1 5-30 EP for most of the year. Will run the 0-20 for the winter oci. Wife does 20,000 a year in her Highlander. I struggle with buying the new 2.5 turbo that replaced it that gets worse gas mileage by many accounts. Maybe with the recent epa rollbacks Toyota will bring it back.
Pros and cons to both. 2GR-FKS has issues with valve seats and timing cover leaks (as usual).

2.4 Turbo is too new to say, but from a driveability standpoint, it has a more usable power band and drives significantly better in most situations.
 
Pros and cons to both. 2GR-FKS has issues with valve seats and timing cover leaks (as usual).

2.4 Turbo is too new to say, but from a driveability standpoint, it has a more usable power band and drives significantly better in most situations.

I have been seeing more and more 2GR-FKS failures popping up lately, kinda odd. After having two in a Tacoma and now the new turbo 4 engine, they both have their ups and downs. The V6 after 3K RPM's just pulls to the redline strong. The 2.4T has everything low to about 4Kish and just falls off? But for stop/go it definitely is better. Fuel mileage is a crap shoot. Stock small 245 tires it was pulling 25mpg consistently. Now with slightly bigger and heavier tires it's back down to 3rd gen range. If you romp on it and keep it in boost, I've seen mine get down to 14...
 
I have been seeing more and more 2GR-FKS failures popping up lately, kinda odd. After having two in a Tacoma and now the new turbo 4 engine, they both have their ups and downs. The V6 after 3K RPM's just pulls to the redline strong. The 2.4T has everything low to about 4Kish and just falls off? But for stop/go it definitely is better. Fuel mileage is a crap shoot. Stock small 245 tires it was pulling 25mpg consistently. Now with slightly bigger and heavier tires it's back down to 3rd gen range. If you romp on it and keep it in boost, I've seen mine get down to 14...
I think the failures are mostly the Tacoma's and some early Highlanders. Otherwise after 2020, besides the timing cover leak they are great. As for power band, drive it in Sport mode if available. It does makes a difference.
 
I think the failures are mostly the Tacoma's and some early Highlanders. Otherwise after 2020, besides the timing cover leak they are great. As for power band, drive it in Sport mode if available. It does makes a difference.

As they age 2020 and up are not immune to the valve seat issue.
 
Please do post UOA's, I feel like we're lacking a database here for Tacoma's. I'm presently running a test on my own truck between different differential and transfer case lubes. My last drain of the three is in the UOA section

Highly recommend a tune, it will be a brand new truck. I've been tuned since the truck has had ~8000kms with a few different ones.

Full disclosure, I am a YotaWerx tuner now.
Sorry for the delay, attached is Blackstone report for this O&F change with HPL Premium PCO (Not the plus) 0w-30. Based on feedback and cost I am going to try a different lab with the next change (~8k miles coming up in Oct)

Tacoma 113k May2025 UOA.webp
 
I have been seeing more and more 2GR-FKS failures popping up lately, kinda odd. After having two in a Tacoma and now the new turbo 4 engine, they both have their ups and downs. The V6 after 3K RPM's just pulls to the redline strong. The 2.4T has everything low to about 4Kish and just falls off? But for stop/go it definitely is better. Fuel mileage is a crap shoot. Stock small 245 tires it was pulling 25mpg consistently. Now with slightly bigger and heavier tires it's back down to 3rd gen range. If you romp on it and keep it in boost, I've seen mine get down to 14...


Car Care Nut has a good video on 2GR-FKS issues.

He thinks there's a decent chance you'll have to drop the engine once.
 
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