10 bestEngine Additivesof May 2026
112M consumers helped this year.
1
IFTEX® Clean System D with Triple Action Diesel Additive for All Diesel Cars (Pack of 2) (250 ml) / Diesel Fuel Treatment and Injector Cleaner for Cleaning deposits and Mileage Improvement
Iftex
9.9
2
Liqui Moly 20002 Cera Tec Friction Modifier (300 ml)
Liqui Moly
9.8
3
Red Flow Diesel & Petrol Additive | Injector Cleaner (300ML), Treats 60L Diesel & 150L Petrol, for All Cars, Bikes, Scooters. Keeps Engine Clean, Improves Engine Smoothness, Fuel Economy & Pickup.
Red Flow
9.6
4
Liqui Moly Super Diesel Additive 250ml 1806
Liqui Moly
9.3
5
Red Line Oil 60103 Complete SI-1 Fuel System Cleaner (15 oz)
Red Line
9.1
6
Chevron Techron D Concentrate Diesel Fuel System Cleaner, 20 oz., Pack of 1
Chevron
8.8
7
Liqui Moly Combo of 4T Shooter (80 Ml), Flush Shooter (80 Ml) and Mos2 Additive Shooter (20 Ml) for Motorbikes
Liqui Moly
8.5
8
URBAN LOTS Liqui Moly Engine Oil Treatment 300 ML
URBAN LOTS
8.2
9
Liqui Moly Motorbike Fuel System Cleaner 4T Shooter (80 ml) (LM044)
Liqui Moly
7.9
10
Auto Marine Motor Treatment, 16 fl. oz., CASE OF 6 (SF16-C)
Sea Foam
7.6
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