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Shop Local. Support Independent. 9 products available

Motor Oil Additives

Engine oil additives and treatments, including oil stabilizer, friction reducer, stiction eliminator, a motor flush and engine treatments, plus a few diesel and gasoline fuel treatments. Brands include Hot Shot's Secr...

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9 products
Howes Diesel Fuel Treatment 64 oz
6 per case

Howes

Howes Diesel Fuel Treatment 64 oz

MPN: 103060

$137.94
Save 15% at $75+ Case of 6
Hot Shot's Secret Stiction Eliminator Engine Oil Treatment/Stabilizer 16 fl. oz.
USA

Hot Shot'S Secret

Hot Shot's Secret Stiction Eliminator Engine Oil Treatment/Stabilizer 16 fl. oz.

MPN: HSS16Z

$19.99
Hot Shot's Secret FR3 Friction Reducer Oil Additive 16 fl. oz.
USA

Hot Shot'S Secret

Hot Shot's Secret FR3 Friction Reducer Oil Additive 16 fl. oz.

MPN: HSSFR316Z

$19.99
Motor Medic Motor Flush 32 oz
USA

Motor Medic

Motor Medic Motor Flush 32 oz

MPN: MF3

$7.59
Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 oz
USA

Lucas Oil Products

Lucas Oil Products Heavy Duty Oil Stabilizer Oil Stabilizer 32 oz

MPN: 10001

$15.99
Slick 50 Engine Treatment 15 oz
USA

Slick 50

Slick 50 Engine Treatment 15 oz

MPN: 750001

$19.99
Sea Foam Gasoline/2 and 4 Cycle Engine Motor Treatment 16 oz
USA

Sea Foam

Sea Foam Gasoline/2 and 4 Cycle Engine Motor Treatment 16 oz

MPN: SF16

$12.99
Sea Foam Diesel/Gasoline Fuel Treatment 20 oz
USA

Sea Foam

Sea Foam Diesel/Gasoline Fuel Treatment 20 oz

MPN: ST20

$12.99
STP Oil Treatment 15.73 oz
USA

Stp

STP Oil Treatment 15.73 oz

MPN: U66079

$8.99

More About This Collection Motor Oil Additives

Engine oil additives and treatments, including oil stabilizer, friction reducer, stiction eliminator, a motor flush and engine treatments, plus a few diesel and gasoline fuel treatments. Brands include Hot Shot's Secret, Sea Foam, Howes, Motor Medic and Lucas Oil Products.

Read each product name to see whether it goes in the oil or the fuel, and check the label for directions.

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About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a familiar banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

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