So which engine (HP, Torque) and Axle Ratio do I have...?

[bello]

Hi All- Recently purchased a 2023 Exp MAX Limited RWD with the base "Stealth" Package. Engine Code (8th Digit of VIN) is "8" ... Also, the Axle Code on the VIN Tag in door is "3L" I suspect I have the "middle" Engine at 400HP & 440 Torque. As for the rear axle, I've not found what ratio Axle 3L is, or/if it has LSD... Anyone out there with real info on this..? Last, what say you all on Gasoline for this: Regular or premium? I tow a Vintage racecar in an enclosed (6000#) 20' trailer 5-6 times a year. SE Florida, no hills or mountains here unless you count overpasses. Thanks! Ernie

 

[byathread]

Believe you have the middle spec. 440HP/480lb-ft. 3L comes up as a 3.73 LSD... Your window sticker would show if you have the 3.73 ELSD, but, you'd also have the elocker button right below your shifter. I always run Premium (93 on the east coast/91 is highest you can get a lot of places further west). Reason being is peak power output and efficiency... Ford says to run premium if towing always. That being said, I had to run some lower octane fuel through my 2019 out west when towing (only 85 available some places) and the fuel mileage/performance is notably awful. With lower octane fuel, there is a lot more timing retarding being done by the ECU to reduce pre-ignition becuase the lower octane fuel combusts easier/reducing pressure in the cylinders, which will reduce power/efficiency. Depending on tongue weight, you might like a weight distribution hitch with that trailer. I think 6K is about the max without one. 6K-9K requires the WDH if you go by what Ford says. IRS, so, you'll get some good squat...