Motor Oil Additives and Treatments

Proper maintenance will save you lots of money throughout the years. At Autobarn we carry engine flushes to remove dirt and sludge from your motor, oil stop leak to fix that minor leak problem you always had, engine treatment to restore gas mileage and leaves your engine running smoother, and more! We feature brands from Lucas, Lubro-Moly, Zmax, Royal Purple, STP, Gunk, White Shepherd, Rislone, Tufoil, CD-2 and Lubegard.
SLICK 50 Synthetic Engine Treatment (15 oz)
ATP AT-205 Leak Re-Sealer (8 oz)
Lucas Motorcycle Oil Stabilizer (12 Oz)
Liqui-Moly Cera Tec Motor Oil Additive (300 ML)
SLICK 50 Synthetic Engine Treatment (15 oz)
Our Price: $19.95
ATP AT-205 Leak Re-Sealer (8 oz)
Our Price: $11.95
Lucas Motorcycle Oil Stabilizer (12 Oz)
Our Price: $6.49
Liqui-Moly Cera Tec Motor Oil Additive (300 ML)
Our Price: $24.95
Lubro-Moly Motor Oil Saver (300 ML)
Lubro-Moly MoS2 Anti-Friction Engine Treatment (300 ML)
Lubro-Moly Motor Protect Synthetic Oil Additive (16.9 oz)
Lubro-Moly Pro-Line Engine Flush (500 ML)
Lubro-Moly Motor Oil Saver (300 ML)
Our Price: $8.99
Lubro-Moly MoS2 Anti-Friction Engine Treatment (300 ML)
Our Price: $8.95
Lubro-Moly Motor Protect Synthetic Oil Additive (16.9 oz)
Our Price: $26.95
Sale Price: $24.95
You Save: $2.00
Lubro-Moly Pro-Line Engine Flush (500 ML)
Our Price: $14.95
ZMax Engine Treatment (12 oz.)
Lucas Heavy Duty Oil Stabilizer (1 Quart)
Lucas Heavy Duty Oil Stabilizer (1 Gallon)
Lucas Engine Oil Stop Leak (32 oz.)
ZMax Engine Treatment (12 oz.)
Our Price: $22.95
Lucas Heavy Duty Oil Stabilizer (1 Quart)
Our Price: $11.95
Sale Price: $10.95, 3/$29.85
You Save: $1.00
Lucas Heavy Duty Oil Stabilizer (1 Gallon)
Our Price: $29.95
Lucas Engine Oil Stop Leak (32 oz.)
Our Price: $8.99
Lucas Engine Oil Stop Leak (Gallon)
Royal Purple Engine Break-In Oil (1 Qt.)
Lucas Engine Break-In Oil Additive (16 oz.)
STP Smoke Treatment (14.5 oz.)
Lucas Engine Oil Stop Leak (Gallon)
Our Price: $23.95
Royal Purple Engine Break-In Oil (1 Qt.)
Our Price: $9.95
Lucas Engine Break-In Oil Additive (16 oz.)
Our Price: $13.95
STP Smoke Treatment (14.5 oz.)
Our Price: $4.95
White Shepherd Rear Main Sealer (8 oz.)
White Shepherd Oil Stop Leak & Conditioner
Gunk Bearin' Seal Engine Sealer (12 oz.)
Gunk Valve Medic Valve Treatment (12 oz.)
White Shepherd Rear Main Sealer (8 oz.)
Our Price: $13.95
White Shepherd Oil Stop Leak & Conditioner
Our Price: $34.95
Sale Price: $19.95
You Save: $15.00
Gunk Bearin' Seal Engine Sealer (12 oz.)
Our Price: $3.49
Gunk Valve Medic Valve Treatment (12 oz.)
Our Price: $3.49
Gunk 5-Minute Motor Flush (32 oz.)
Rislone Engine Treatment (16.9 oz.)
Rislone Ring Seal (15 oz.)
STP Oil Treatment (15 oz.)
Gunk 5-Minute Motor Flush (32 oz.)
Our Price: $5.99
Rislone Engine Treatment (16.9 oz.)
Our Price: $6.49, 12/$65.88
Rislone Ring Seal (15 oz.)
Our Price: $4.95
STP Oil Treatment (15 oz.)
Our Price: $4.49, 12/$45.48
Tufoil Engine Treatment 8 oz.
Tufoil Engine Treatment 32 oz.
Tufoil Engine Treatment 1 Gallon
Tufoil Engine Treatment For Trucks 50 oz.
Tufoil Engine Treatment 8 oz.
Our Price: $12.95
Sale Price: $11.95
You Save: $1.00
Tufoil Engine Treatment 32 oz.
Our Price: $41.95
Sale Price: $39.95, 2/$77.90
You Save: $2.00
Tufoil Engine Treatment 1 Gallon
Our Price: $139.95
Tufoil Engine Treatment For Trucks 50 oz.
Our Price: $54.95
Sale Price: $52.95
You Save: $2.00
Tufoil Engine Treatment For Motorcycles 2 Oz.
CD-2 Heavy Duty Engine Oil Stop Leak (15 oz.)
CD-2 Oil Detergent (15 oz.)
Marvel Mystery Oil (16 oz.)
Tufoil Engine Treatment For Motorcycles 2 Oz.
Our Price: $5.95
CD-2 Heavy Duty Engine Oil Stop Leak (15 oz.)
Our Price: $3.99, 6/$20.94
CD-2 Oil Detergent (15 oz.)
Our Price: $3.99, 6/$20.94
Marvel Mystery Oil (16 oz.)
Our Price: $4.29
Sale Price: $3.99, 6/$22.14
You Save: $0.30
Marvel Mystery Oil (32 oz.)
LUBEGARD Bio/Tech Engine Protectant (15 oz.)
LUBEGARD Engine Flush (15 oz.)
Marvel Mystery Oil (32 oz.)
Our Price: $5.99, 6/$32.94
LUBEGARD Bio/Tech Engine Protectant (15 oz.)
Our Price: $12.95
LUBEGARD Engine Flush (15 oz.)
Our Price: $8.99

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  • "My order was complete and correct and arrived a day ahead of schedule.Thank you"

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  • "It was very easy to shop at AutoBarn. S&H were reasonable."

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  • "The item ordered was delivered as expected and performs as designed and very well."

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