Coming soon... TOP TIER+ fuels

Coming soon to a gas station near you. Now imagine the THX sound.
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I wonder if TT will bump their membership fee rate once TT+ is established and cause more brands to drop their participation in the TT program? (e.g., bp)

Or if the stricter requirements will cause some brands to not meet TT+ ? I imagine the flagship brands of SHEL, XOM, and CVX will meet- and remain in- TT+ either way.
 
I'm not seeing why we'd be getting eye rolling and grumping; it's not like anyone around here grouses when they announce a new oil spec. This is no different- Top Tier gas is like any other performance standard, and changes as technology and needs increase.
Exactly.
Didn't Volkswagen coolant go from G11 to G12, then G12+, then G12++, then G12+++?
I don't know what came after that.
 
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