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Refuel with 93 Octane Gasoline

0:56
29:46
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At 0:56 in

Turbo 5.3L Yukon Stock Fuel Pump Test: When Do You Need a Bigger Pump? (Uncle Rob Hits The Dyno!)

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What happens here

With the mechanical prep and ECU swap complete, the vehicle needs the correct fuel for dyno testing. Drive the GMC Yukon XL to a gas station (e.g., Valero). Fill the fuel tank with 93 octane gasoline. The host explains that a previous fuel mix included racing ethanol, and for the current pump gas tune, 93 octane is required. Only 7 gallons are added at this stage because a larger fuel pump will be installed later, necessitating the tank to be dropped.

Goal: Provide appropriate fuel for dyno testing on a pump gas tune.

Tools and materials

  • Gas Pump Valero — Dispensing gasoline
  • GMC Yukon XL GMC — The vehicle being refueled
  • 93 Octane Gasoline Valero — Fueling the vehicle for dyno testing

What they say

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and found that we uh yeah we did that in the last pass we made it yellow belly before like as the transmission was dying i felt it breaking up i don't know if you saw that video um i kind of said something about it i was like i feel like i was breaking up and then afterwards i realized we never changed the spark plugs it's kind of like a rookie mistake these are stock spark plugs so i changed those and now i'm just getting the atf topped off and for your own information the 4l60

Auto-generated from the video audio.