Vehicle guides & spec explainers

Manufacturer spec sheets are written to be defensible, not useful. A tow rating assumes one cab, bed, axle ratio and a 150-pound driver with no passengers. An EPA MPG figure comes from a dynamometer cycle averaging 48 mph on the highway loop. A "lifetime" transmission fluid is lifetime only for the length of the warranty. These guides translate published figures into the number that applies to your vehicle, your configuration and your driving.

Towing and payload. Max tow is the headline; payload is the constraint that actually stops you. Tongue weight runs 10–15% of trailer weight and comes straight out of the payload figure on the door-jamb sticker, along with every passenger and everything in the bed. Most half-ton pickups run out of payload thousands of pounds before they run out of tow rating.

Fuel economy. Combined MPG is a fixed 55/45 weighting of two lab cycles, not a prediction. Expect 10–15% below sticker in normal use and 25% below in cold, short-trip driving. Compare gallons per 100 miles rather than MPG when you are working out what a difference is worth in money.

Maintenance. Four items carry genuine failure risk — engine oil, timing belt, brake fluid and coolant. Most other line items on a dealer schedule are inspections and margin. Fluids are age-limited before they are mileage-limited, so a low-mileage car is not on a lighter schedule.

Size and dimensions.Published width excludes mirrors; add 8–12 inches. A standard garage bay is 192 inches deep, which is why a midsize sedan fits everywhere and a full-size three-row SUV often does not. Wheelbase predicts rear legroom better than overall length does.

Every figure quoted across these articles traces back to NHTSA and EPA data sets and manufacturer service documentation. Where a number is an estimate or a class-typical range rather than a published spec, it says so.