Across
1. Drivetrain components
8. Imported petroleum (4,3)
9. Palindromic brake component
10. Racers’ quick-service areas
11. Ominous engine sound
13. Speed ____, tire-sidewall info
15. Oxygen ____, exhaust-manifold item
18. Tire’s tread-sidewall junction
19. Engine anti-leak device
22. Unpaid car-plant worker
23. Sidewall height-to-width ratio
24. Radiator diagnostic procedures (8,5)
Down
1. Interstate-patrolling officer
2. Car-insurance contact
3. Car-repair facility
4. Running at minimum throttle
5. Timing-chain partner
6. Wins, at car auction
7. Auto. trans. ____ clutch
12. Adds air to tire
14. OBD-scanner output, ____ code
16. Bearing components, sometimes
17. Valve retainer’s partner
18. Remove engine’s parts
20. Offramps
21. Nut counterpart
