Keep your engine happy and your weekend problem-free.

Why it’s worth it

• Catch problems early before they cost you a motor

• Choose the right oil for your car and driving

• Set smarter change intervals (save time & money)

• Spot coolant or fuel issues fast

• Track health over time with real, comparable data

• Get clear SRD recommendations you can act on

Fast, simple kit. Pull a hot sample, mail it, get insights—so you can drive harder with confidence.