There are tons of trucks with beefy engines to consider. However, some trucks are thirstier than expected. Three full-size trucks boast plenty of muscle, but to get their best performance you have to buy premium fuel. 

3 full-size trucks actually need premium fuel 

There are three full-size trucks that might cost you a little more at the pump if you want to reach their full potential and Pickup Truck Talk broke it down for us. 

The first truck that requires premium fuel is the 2025 Chevrolet Silverado 1500. The available 6.2-liter V8 engine cranked out 420 hp and 460 lb-ft of torque. 

However, to get all that power you need to feed it fuel with an octane rating of 91. You can use 87 octane if you’re in a pinch. 

Just know that the owner’s manual says doing so will result in reduced performance and drivability. Also, the GMC Sierra 1500 has the same engine available. 

Next up is the 2025 Ford F-150. The available EcoBoost engines pair well with 87-octane fuel in most cases. 

Ford shared that for the best overall vehicle and engine performance, premium fuel with an octane rating of 91 or higher is recommended. 

The performance gained by using premium fuel is most noticeable during hot weather conditions and while towing trailers. This recommendation applies to all F-150 engine options. 

The 2025 Ram 1500 is another one of the full-size trucks that requires premium fuel. The 3.0-liter inline-six Hurricane engine has two variants. 

With the standard output option, you get 420 hp and 469 lb-ft of torque. Using 87 octane with this engine is fine. 

If you upgrade to the high output option for 540 hp and 521 lb-ft of torque then you’ll need to use 91 octane. You can use 87 octane, but it will impact your truck’s performance.