DALLAS, Texas — Chevron has introduced a new Delo 400 LE synthetic 5W-30 engine oil it says can improve fuel mileage by up to 2% in Class 8 long-haul vehicles and 4.5% in medium-duty trucks.
DALLAS, Texas — Chevron has introduced a new Delo 400 LE synthetic 5W-30 engine oil it says can improve fuel mileage by up to 2% in Class 8 long-haul vehicles and 4.5% in medium-duty trucks.