All Maintenance & Service tools
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Towing Capacity Calculator: Trailer Weight, Tongue Weight and Payload
Check your loaded trailer against the tow rating and see tongue weight and payload left.
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Speed and Distance Converter: mph, km/h, Miles and Kilometres
Convert mph, km/h, m/s and knots, plus miles, kilometres, metres and feet.
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EV Charging Cost Calculator: Cost per Charge and per Mile
Estimate what a charge costs, how much range it adds and the cost per mile.
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Oil Change Interval Calculator: When Is Your Next Oil Change Due?
Find out when your next oil change is due by mileage and by date.
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Car Loan EMI Calculator: Monthly Payment and Total Interest
Work out your monthly car loan payment, total interest and total repaid.
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MPG Calculator: Miles Per Gallon and Cost Per Mile
Turn miles and gallons into MPG, L/100 km, fuel cost and cost per mile.
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Window Tint VLT Calculator: Film + Glass Percentage
Find the real combined VLT of tint film on your glass and compare it with your local limit.
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Tire Size Calculator: Compare Diameter and Speedometer Error
Compare two tire sizes and see the diameter change, real speed and revolutions per mile.
About these tools
This section covers service intervals, fluids and maintenance schedules. Regular service is cheaper than repairs. These tools help you plan oil changes, estimate fluid quantities and keep track of service intervals so small jobs do not turn into big bills.
Every tool has a guide explaining why the interval matters, what to check and when your owner manual should overrule a general rule.
Common questions
How often should I change my oil?
Follow the interval in your owner manual. It depends on engine, oil type and driving conditions, and it is not the same for every car.
Do these tools replace the owner manual?
No. They give a planning estimate. The manual is the final word for your car.
Which jobs can I do at home?
Basic checks such as fluid levels, tire pressure and wiper blades are easy. Brakes and anything safety-critical are best left to a qualified mechanic unless you are experienced.