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.
Tufoil Engine Treatment 8 oz.
Tufoil Engine Treatment 32 oz.
Tufoil Engine Treatment 1 Gallon
Tufoil Engine Treatment For Trucks 50 oz.
Slipperier than Teflon to make engines start easier, run cleaner, faster, and longer.
Our Price: $12.95
Our Price: $48.95
Sale Price: $43.95, 2/$81.90
You Save: $5.00
Our Price: $144.95
Our Price: $60.95
Sale Price: $56.95
You Save: $4.00
Tufoil Engine Treatment For Motorcycles 2 Oz.
4 Cylinder Engine Restorer & Lubricant (11 oz.)
6 Cylinder Engine Restorer & Lubricant (15 oz.)
8 Cylinder Engine Restorer & Lubricant (19 oz.)
Our Price: $8.95
Sale Price: $6.95
You Save: $2.00
Our Price: $8.49
Our Price: $10.49
Our Price: $11.95
SLICK 50 Synthetic Engine Treatment (15 oz)
ATP AT-205 Multi-Purpose Leak Re-Sealer (8 oz)
Lucas Motorcycle Oil Stabilizer (12 Oz)
Liqui-Moly Cera Tec Motor Oil Additive (300 ML)
Fights performance robbing friction 18% better than synthetic motor oil alone
Our Price: $19.95
Sale Price: $17.95
You Save: $2.00
Stops leaks in the power steering, transmission, engine, differential, sunroof seals, etc.
Our Price: $11.95
Our Price: $6.49
High-tech ceramic wear protection product for all motor oils
Our Price: $24.95
Sale Price: $23.95
You Save: $1.00
Lubro-Moly Motor Oil Saver (300 ML)
Lubro-Moly MoS2 Anti-Friction Engine Treatment (300 ML)
Lubro-Moly Pro-Line Engine Flush (500 ML)
ZMax Engine Treatment (12 oz.)
Our Price: $9.95
Our Price: $8.95
Our Price: $14.95
Our Price: $22.95
Lucas Heavy Duty Oil Stabilizer (1 Quart)
Lucas Heavy Duty Oil Stabilizer (1 Gallon)
Lucas Synthetic Heavy Duty Oil Stabilizer (1 Qt.)
Lucas Engine Oil Stop Leak (32 oz.)
Our Price: $11.95
Sale Price: $10.95, 3/$29.85
You Save: $1.00
Our Price: $29.95
Lucas synthetic oil stabilizer stabilizes oil pressure, eliminates hesistation, rough idle, stalling and friction for more power and MPG
Our Price: $14.99
Sale Price: $11.95
You Save: $3.04
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.)
Our Price: $31.95
Our Price: $10.95
Our Price: $13.95
Our Price: $4.95
Blue Devil Rear Main Sealer (8 oz.)
Blue Devil Oil Stop Leak & Conditioner (8 oz)
Gunk Bearin' Seal Engine Sealer (12 oz.)
Gunk Valve Medic Valve Treatment (12 oz.)
Our Price: $13.95
Our Price: $34.95
Sale Price: $19.95
You Save: $15.00
Our Price: $3.49
Our Price: $3.99
Gunk 5-Minute Motor Flush (32 oz.)
Rislone Engine Treatment (16.9 oz.)
Rislone Ring Seal (15 oz.)
STP Oil Treatment (15 oz.)
Our Price: $6.99
Our Price: $6.49, 12/$65.88
Our Price: $4.95
Our Price: $4.69, 12/$47.88
CD-2 Heavy Duty Engine Oil Stop Leak (15 oz.)
CD-2 Oil Detergent (15 oz.)
Marvel Mystery Oil (16 oz.)
Marvel Mystery Oil (32 oz.)
Our Price: $3.99, 6/$20.94
Our Price: $3.99, 6/$22.74
Our Price: $4.29
Sale Price: $3.99, 6/$22.14
You Save: $0.30
Our Price: $5.99, 6/$32.94
LUBEGARD Bio/Tech Engine Protectant (15 oz.)
LUBEGARD Engine Flush (15 oz.)
Our Price: $12.95
Our Price: $8.99
  • "Had a great easy purchase. The site was not too complicated." (4/27/16)

    -
  • "Good experience and products." (4/27/16)

    -
  • "Great website and inventory." (4/22/16)

    -
  • "Tried a lot of sites, your site ended my search for the product I was looking for!" (4/19/16)

    -
Read All Testimonials