Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - High HT/HS 5w30 oil recommendations for high temps?

glhs386 · 06-06-2023, 03:53 AM

Any reason not to run a 0W-40? Redline HTHS is 4.0 and 300V is 3.9. Even if it shears down a little bit due to the higher viscosity index you're not any worse off than using an XW-30.

06-06-2023, 03:53 AM	#4
glhs386 Member Join Date: Sep 2018 Drives: 2014 FR-S Monogram Location: Nor Cal Posts: 57 Thanks: 52 Thanked 65 Times in 34 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Any reason not to run a 0W-40? Redline HTHS is 4.0 and 300V is 3.9. Even if it shears down a little bit due to the higher viscosity index you're not any worse off than using an XW-30.