tsnara t1_jbec14s wrote on March 8, 2023 at 1:08 PM

Reply to comment by stratomaster82 in My 2004 4Runner with over 320k miles by stratomaster82

Consider only buying top tier brand gas instead of going higher octane. Higher octane is a waste if your car calls for lower. Top tier gas has a lot of cleaning additives which is supposed to clean the system. My new Toyota recommends low octane top tier gas.

texassadist t1_jbet24s wrote on March 8, 2023 at 3:18 PM

Wth is low octane top tier? Like 87 w/ Techron?

sinnayre t1_jbf7k0h wrote on March 8, 2023 at 4:52 PM

Pretty much.

Top tier brands are listed at toptiergas.com. For modern vehicles, most cars will call for 87, but check your owners manual for exact octane level. Higher octane just means it takes more compression to detonate, which is only important in specific applications like turbos and some higher end luxury cars. It’s important to prevent knocking.

Just don’t be like a buddy of mine and put 87 in a BMW that called for 91 and wonder why the engine was knocking.

tsnara t1_jbfb8y7 wrote on March 8, 2023 at 5:15 PM

Yes exactly this

Mabepossibly t1_jc994rm wrote on March 15, 2023 at 5:01 AM

Yes. Essentially there is a difference between name brand gas Mobil, Valero, Citco, etc and the Cumberland Farms or Wawa gas.