🛠️ Digital Toolkit

Calculators, lookups, and resources for your garage. No login required.

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Calculator

Torque Unit Converter

Instantly convert between Newton-meters (Nm) and foot-pounds (ft-lb) for precise tightening specs.

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Reference

OBD2 Code Quick Lookup

Search generic trouble codes (P0001-P0999) and find common causes and fixes instantly.

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Checklist

Oil Change Checklist

Printable digital checklist for a complete engine oil and filter change service.

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Database

Fluid Capacities Database

Reference table for engine oil, transmission, and coolant capacities by common engine displacements.

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Checklist

Brake Bleed Sequence

Step-by-step checklist and sequence for bleeding brake systems safely.

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Calculator

Wire Gauge Selector

Determine the correct American Wire Gauge (AWG) based on amperage and voltage drop tolerance.

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Calculator

Tire Pressure Adjuster

Calculate how tire pressure changes with temperature for accurate cold PSI readings.

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Reference

Common Torque Specs

Quick reference for lug nuts, oil drain plugs, spark plugs, and axle nuts.

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Code	Description	Common Cause
P0300	Random/Multiple Cylinder Misfire	Ignition coils, spark plugs, fuel injector
P0420	Catalyst System Efficiency Below Threshold	Bad catalytic converter, O2 sensor
P0171	System Too Lean (Bank 1)	Vacuum leak, MAF sensor, fuel pressure
P0128	Coolant Thermostat Below Regulating Temp	Stuck open thermostat
P0135	Heater Circuit Malfunction (O2S11)	Bad O2 sensor heater, fuse, wiring
P0442	EVAP Small Leak Detected	Loose gas cap, purge valve, vent valve
P0500	Vehicle Speed Sensor Circuit Malfunction	VSS sensor, transmission output sensor
P0700	Transmission Control System Malfunction	TCM issue, transmission fluid, solenoid

Engine Size	Engine Oil (qts/L)	Transmission (qts/L)	Coolant (qts/L)
1.6L - 2.0L	4.0 - 4.5 / 3.8 - 4.3	6.0 - 8.0 / 5.7 - 7.6	6.0 - 7.0 / 5.7 - 6.6
2.5L - 3.5L	5.0 - 6.0 / 4.7 - 5.7	7.0 - 10.0 / 6.6 - 9.5	8.0 - 10.0 / 7.6 - 9.5
4.0L - 5.0L	6.0 - 7.0 / 5.7 - 6.6	9.0 - 12.0 / 8.5 - 11.4	10.0 - 12.0 / 9.5 - 11.4
6.0L - 8.0L V8	7.0 - 8.0 / 6.6 - 7.6	10.0 - 13.0 / 9.5 - 12.3	12.0 - 14.0 / 11.4 - 13.2

Component	Torque (Nm)	Torque (ft-lb)
Lug Nuts (Steel, M12)	100 - 120	74 - 88
Lug Bolts (M14)	120 - 140	88 - 103
Oil Drain Plug	25 - 40	18 - 30
Spark Plugs (14mm)	20 - 30	15 - 22
Axle Nuts	150 - 250	110 - 184
Swivel Ball Nut	100 - 150	74 - 110
Stabilizer Bar Link	40 - 60	30 - 44
Brake Caliper Bolts	20 - 50	15 - 37

🛠️ Digital Toolkit

Torque Unit Converter

OBD2 Code Quick Lookup

Oil Change Checklist

Fluid Capacities Database

Brake Bleed Sequence

Wire Gauge Selector

Tire Pressure Adjuster

Common Torque Specs

⚙️ Torque Converter

Result

💡 OBD2 Code Lookup

🛢️ Oil Change Checklist

📊 Fluid Capacities

🛑 Brake Bleed Checklist

🔩 Common Torque Specs