Vehicles

Fuel logs, registrations and parking tickets.

24 tools

Accident & Damage Log Log accidents with severity, other party, police report and claim numbers.
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Battery Replacement Tracker Track each car battery: brand, group size, CCA, warranty and install date.
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Brake Service Log Record brake pad/rotor/fluid service with odometer and cost.
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Coolant Mix Calculator Calculate concentrate + water litres for a target antifreeze percentage.
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DIY Vehicle Repair Log Track at-home repairs: job, hours, parts cost and odometer.
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Driver License & Document Vault Track license, ID and travel-document expiry per driver in your household.
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EV Charging Cost Calculator Estimate the cost to charge an EV between two states of charge.
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EV Range vs Temperature Estimate real-world EV range as a function of outside temperature and cabin heating.
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Fuel Log Track fill-ups with odometer, liters and cost.
Gear Ratio / Speed Calculator Find road speed from engine RPM, gearing, final drive and tire size.
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MPG / L/100km Calculator Convert between miles-per-gallon (US & UK) and litres per 100 km.
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OBD-II Code Lookup Look up the meaning of an OBD-II diagnostic trouble code (P, B, C or U).
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Oil Change Tracker Log oil changes with odometer, oil type and next-due mileage.
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Parking Ticket Log Track citations: violation, fine, due date and paid status.
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Speedometer Error Calculator See how a tire-diameter change skews your indicated vs actual speed.
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Tire Pressure & Rotation Log Track corner-by-corner tire pressures and rotations over time.
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Tire Size Calculator Parse 225/45R17 style tire codes — sidewall, overall diameter and speedo error vs an OEM size.
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Toll / E-ZPass Log Log toll charges by date and location for expense tracking.
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Towing Capacity Calculator Check trailer weight against vehicle rated capacity; estimate tongue weight and safety margin.
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Vehicle Depreciation Calculator Project a vehicle's value year by year using a declining-balance rate.
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Vehicle Lease vs Buy Calculator Compare monthly cost and long-term net of leasing vs financing a vehicle.
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Vehicle Modifications Log Track mods: category, part number, install date and cost.
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Vehicle Registry Track registration, insurance and inspection expiries.
VIN Decoder Decode a 17-character VIN: country, manufacturer, model year, plant and check-digit.
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