Alternative Fuels, Additives, Oils & Lubricants
Just bought a used ‘23 Titan XD gas and have read through what I could find on gas octane uses and am looking for real life experiences using 87 or 89 octane gas instead of 91. The manual recommends, but does not require. I rarely use it for towing and then only tow about 4,000 to 7,000 lbs. I...