Are these lookups free?

Yes. Every tool is free, needs no sign-up, and runs in your browser.

Do you store my vehicle lookup inputs?

No. The interactive lookups run in your browser; you do not need an account.

Where does the data come from?

Specs are compiled from well-documented, manufacturer-published values. Always confirm against your vehicle's labels and owner's manual before buying parts.

Fitment. Towing. Service. Safety.

Check the spec. Make the right move.

Free, no-signup vehicle spec lookups for fitment, towing, tires, and maintenance. Start with the job, then verify the number that matters.

Check a vehicle Review our sources

What are you working on?

Choose the vehicle task first, then open the matching lookup.

Wheels & tires Bolt pattern and fitment Tow & haul Capacity and headroom Service Oil quantity and type Safety checks Tire load rating

Quick towing check

Loaded Trailer Headroom

Compare a simple loaded-trailer estimate with the vehicle's published maximum before opening the full worksheet.

Estimated margin —

Bolt Pattern Find wheel PCD and compatible vehicles by make and model. Open Oil Capacity Check refill quantity, oil type, viscosity, and bottle count. Open

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Specs with context

Source notes stay beside the result.

MotorTally groups fitment and capacity data by model, generation, trim, and year where the source supports it—and makes caveats visible.

Our methodology Report bad data

Full toolkit

Every calculator has one clear job.

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01 Bolt Pattern Find any vehicle's wheel bolt pattern (PCD) by make and model — plus every other vehicle that shares it. 02 Towing Capacity Look up max towing by model, then check your loaded trailer against it — with headroom and tongue weight. 03 Oil Capacity How many quarts your engine takes, the oil type and viscosity, and how many bottles to buy. 04 Tire Size Factory tire size, alternates, and what fits — by make, model, and year. 05 Tire Load Rating Compare replacement load indices with the OEM or placard requirement — per set, axle, or tire — with a conservative safety result.