What gas are you using?

[Dirt]

Almost always top tier. The book says 87 so that's what I use unless in the areas that only sell 85. Haven't had any problems with the gas in 16K miles. Cold weather and winter tires knock down mileage, but the Taco runs just fine. Now that I've read these comments, I'll try 91 for a few tanks when the weather breaks and season changes.

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[lauren01]

Was using top tier 87, switched to 91 after OTT tune.

 

[izzy]

The only tank of 87 my truck ever had was when the dealership filled it up when I bought it.

Since tank 1 it's been on Top Tier 91.

No reason to not use the highest octane fuel you can in a turbo engine. Zero downsides, only upsides, better knock protection, and more power.

Your rods and bottom end and piston crowns will thank you

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