UD5 Toolkit
Tire Size Speedometer Error Calculator – Odometer Correction
Compare two tire sizes and see the percentage error introduced in speedometer and odometer readings. Essential after upgrading wheels to avoid speeding tickets.
Automotive Tools - Car & Fuel
10+ toolsDetailing Checklist – Online Wash, Clay, Polish, Wax Steps
Step‑by‑step automotive detailing checklist. Check off tasks, set timer for curing. Perfect shine.
Engine Oil Capacity Lookup – Online Quarts & Filter Type
Find your car's engine oil capacity and recommended filter part number. Quick reference for DIY oil change.
Tire Pressure Guide – Online Convert Load & Temperature
Adjust recommended tire pressure for extra load or high speed. Simple reference chart.
Brake Rotor Size Calculator - Online Car Maintenance
Enter your car's make and model to find the minimum and maximum rotor thickness specs. Static lookup table. Local reference.
Windshield Wiper Size Finder – Online by Vehicle
Look up front and rear wiper blade sizes by car model. Never buy the wrong length again.
Tire Size Visualizer - Online Compare & Dimensions
Enter two tire sizes and see a side‑by‑side comparison of diameter, width, and speedometer error. Local math.
Headlight Bulb Lookup & Cross‑Reference – Online Bulb Finder
Enter your vehicle to find the correct headlight, fog, and interior bulb part numbers. Prints a list.
Car Battery Group Size Finder – Online Year/Make/Model
Select your vehicle to get the correct BCI group size for a replacement battery. Quick reference.
Lug Nut Torque Spec Finder – Online by Vehicle Make
Look up manufacturer torque specs for lug nuts. Avoid warped rotors. Printable chart.