Skip to Main Content
Close Icon

Main Menu

Begin typing to search, use arrow keys to navigate, Enter to select.
Your order may take longer than normal to arrive, and some products may be unavailable. We are working hard to overcome supply-chain issues and freight-carrier delays. Learn more.

Car and Truck Gasoline Additives

2 of 2 products
2 of 2 products
The selection will refresh the page with new results
The selection will refresh the page with new results
The selection will refresh the page with new results
FILTER
Sort by
P.i. Performance Improver Gasoline Additive

P.i. Performance Improver Gasoline Additive


  • Restores up to 14% horsepower1
  • Reduces GDI fuel injectors to 100% flow rate after one tank of fuel2
  • Improves fuel economy
  • Reduces need for costly higher-octane fuel
  • Helps prevent carbon rap
  • Controls pre-ignition knock
  • Compatible with capless fuel systems
1Based on third-party testing in a 2016 Chevrolet* Silverado* 1500, 5.3L V-8 GDI with 100,616 miles, using one tank treated with AMSOIL P.i. Actual results may vary.
View Detail Page
$20.69
Retail Price (CAD)
Preferred Price: $16.69
Save: $4.00 Learn More
Upper Cylinder Lubricant

Upper Cylinder Lubricant


Preserves Horsepower and Performance

Your engine’s top-end is sparsely lubricated and prone to the development of performance-robbing deposits. It’s also highly susceptible to corrosion, an issue compounded by the prevalence of ethanol in today’s fuel. AMSOIL Upper Cylinder Lubricant is designed to solve those issues. Its AMSOIL-exclusive, powerful formulation helps maximize engine power and performance while increasing engine life. And unlike competing fuel additives, AMSOIL Upper Cylinder Lubricant works.
View Detail Page
$7.69
Retail Price (CAD)
Preferred Price: $6.09
Save: $1.60 Learn More
UCLCNC-EA
$7.69
Retail Price (CAD)
Preferred Price: $6.09
Save: $1.60 Learn More
Become a preffered customer: promotions, rewards
Free AMSOIL PopSocket with $75 Purchase