| Rank | Product Name | Score | Check Price |
|---|---|---|---|
| 1 | Sonax (543200-755) Engine Cold Cleaner – 16.9 fl By Sonax 58 Reviews | 9.8 Score | View Product $11.99 Shop $15.85 Shop x |
| 2 | ACDelco X66P Fuel Injector and Upper Engine Cle… By ACDelco 56 Reviews | 9.4 Score | View Product $13.18 Shop $23.32 Shop x |
| 3 | Genuine GM Fluid 88861803 Upper Engine and Fuel By General Motors 78 Reviews | 9.1 Score | View Product $20.86 Shop x |
| 4 | Chevron 65740 Techron Concentrate Plus Fuel Sys… By Chevron 70 Reviews | 8.9 Score | View Product $11.95 Shop $14.21 Shop x |
| 5 | Chemical Guys CLD 201 16 Signature Series Orange By Chemical Guys 33 Reviews | 8.6 Score | View Product $8.99 Shop $12.99 Shop x |
| 6 | Griot’s Garage 10959 Engine Cleaner – 22 oz By Griot’s Garage 80 Reviews | 8.3 Score | View Product $10.99 Shop x |
| 7 | Liqui Moly 2037 Pro-Line Engine Flush – 500 By Liqui Moly 66 Reviews | 8.1 Score | View Product $10.04 Shop $15.55 Shop $21.22 Shop x |
| 8 | Red Line (60103) Complete SI-1 Fuel System Cleaner By Red Line Oil 87 Reviews | 7.7 Score | View Product $11.95 Shop $12.42 Shop x |
| 9 | Black Magic BM22018 2-in-1 Engine Shine, 20 oz By Black Magic 49 Reviews | 7.4 Score | View Product $6.69 Shop x |
| 10 | Sea Foam SS14 Cleaner and Lube By Sea Foam 71 Reviews | 7.2 Score | View Product $8.78 Shop x |