ASE T8 Preventive Maintenance practice test
The T8 test covers preventive maintenance inspection — the systematic PM service and the federal inspection standards behind it: brake stroke limits, tread depths, leak classification, and what puts a truck out of service. Required for Master Truck status.
A PM steering check on a truck with power steering includes measuring steering wheel free play. Excessive lash beyond the inspection limit indicates:
How the T8 test works
50 scored questions
+ ~10 unscored research questions
75 minutes
computer-based, at a test center
$62 per test
plus one $34 registration fee per order
Valid 5 years
then a shorter recertification test
ASE does not publish one universal passing percentage; the passing standard is set by test. TorquePrep uses 80% as a conservative practice target, not as an official ASE cut score. The certificate is issued once ASE verifies your required work experience.
What the T8 test covers
The official task list for T8 Preventive Maintenance Inspection (Medium-Heavy Truck) breaks down into these content areas — the practice bank above draws from all of them:
- Engine systems PM — fluids, filters, leaks, belts, cooling system checks
- Cab, chassis, and frame inspection
- Brake system inspection — pushrod stroke, linings, air system checks
- Tires, wheels, and mud flaps — FMCSA tread depth minimums
- Electrical, lighting, and conspicuity checks
- Federal inspection standards and record-keeping basics
Frequently asked
- How many questions are on the ASE T8 test?
- The T8 test has 50 scored questions plus about 10 unscored research questions, with a 75-minute time limit.
- What tread depth minimums should I know?
- The federal minimums: 4/32 inch on steer-axle tires and 2/32 inch on all other positions, measured in a major tread groove.
- Is T8 a good first T-series test?
- Many technicians start with T8 because PM work is the entry point of most shop careers, and its content reviews every other system at inspection depth.
Exam length, timing, fees, and content areas checked September 11, 2026 against the official ASE test table and ASE study guides.
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