Across
1. Auto seats, sometimes
5. Grip-enhancing tire-tread slits
8. Circular-rubber sealing device (1,4)
9. Caliper component, ____ valve
10. Component incorporating bendix drive
11. Conical traffic diverter
12. Perfect condition, slangily
14. Groovy tire surfaces
17. Topless-touring Mazda
19. Recycled tire
22. Valve-seat deterioration
23. Crankshaft bearing type
24. Adjusts the engine
25. Automotive wiring assembly
Down
1. CV-joint covers
2. Auto A/C type, ____ control
3. Chrysler Hemi cylinder count
4. Carmaker with all-AWD lineup
5. Big-rig’s built-in bunk
6. Foot control
7. Valve-train components
12. Timing-chain alternative (3,4)
13. Rock-band-bus riders
15. CAFE is Corporate ____ Fuel Economy
16. Box- or open-end tool
18. Wheel-nut type
20. Top to bottom cylinder-dia. variance
21. Parking-lot souvenirs