Across
1. Synonym for valve lifters
5. ’70s Plymouth for a rascal
8. Piston-related specification (4,3)
9. Adjusted the headlights
10. Wheel-nut description, perhaps
11. Engine-incontinence inhibitor (3,4)
12. Wheel-bearing lube
14. Auto-battery components
17. Front-passenger position, slangily
19. US crash-test agency, briefly (1,1,1,1,1)
22. Uplifting service-bay sight
23. Antifreeze and water mixture
24. Piston portions between rings
25. Body-shop power tools
Down
1. Roof with removable, full-width panel
2. ’70s Ford for a horse lover
3. Internal-combustion power producers
4. Gasoline thief’s tool
5. Unexpected engine stoppage
6. Interior door-panel feature, frequently
7. Sports car shifting devices, sometimes
12. Gasoline-ethanol blend, slangily
13. Valve-seat deterioration
15. Brand named for US president
16. Ominous engine sounds
18. Belt and hose brand since 1917
20. Factor in new-car deal, perhaps
21. Certain transmissions, briefly