RACING

S1 Racing Suspension Fluid

Lucas Oil Products developed S1 Racing Suspension Fluid to provide exceptional viscosity stability, anti-friction and anti-foam properties for use in all high performance suspension systems. Applications include off road racing shocks, motocross, supercross, conventional and upside down forks, circle track racing and more. Lucas specially formulated friction modifiers increase lubricity for minimum friction and for more responsive handling. Guaranteed to improve a narrow, consistent, rebounding range and easy suspension tuning.

KEY BENEFITS

Superior Damping
Controls Heat
Lower Operating Temperatures
Excellent Thermal Stability
Contains special anti-wear and lubricity agents
Excellent for high performance and heavy-duty applications

Packaging

#10488	1 Quart (Case 12)	25 lbs
#10548	5 Quart (Case of 3)	30 lbs

Download Product Files

	Product Data Sheet
	Safety Data Sheet

MEDIA

360 VIEW

view the 360

360 VIEW

view the 360

PRODUCT VIEW

S1 Suspension Fluid - Quart

PRODUCT LABEL

S1 Suspension Fluid - Quart (Label)

PRODUCT VIEW

S1 Suspension Fluid - 5 Quart

PRODUCT LABEL

S1 Suspension Fluid - 5 Quart (Label)

PRODUCT FLYER

S1 Suspension Fluid Flyer

HEAR IT FROM OUR CUSTOMERS

Lucas is SERIOUS about what they sell.

After checking my Power Steering Fluid on my Kia Spectra, I noticed the level was low. Bought the Kia new and its now 4 years old. I decided to drain the rest of the power steering fluid and replace with Lucas Power Steering Fluid purchased at Auto Zone. What a noticeable difference in steering! Price was a few dollars higher and I would spend a few more knowing Lucas is SERIOUS about what they sell. 100% would recommend Lucas Power Steering Fluid.

Gene Zeier Jr., Richmond, TX

I added this to the gas and was amazed… it stopped making the sound that I thought was a rod bearing.

My truck engine has over 200,000 miles and a knock started and I thought it was a rod bearing. I was reading the label on the product Complete Engine Treatment and the words, (stops engine knocks.) I added this to the gas and was amazed, and still am, it stopped making the sound that I thought was a rod bearing. I do have to add the treatment to each fill up, but it does work.

Jack

Nothing other than Lucas Oil products comes through the door of this shop EVER

I own a auto repair shop in Milton Ontario Canada and i use NOTHING but Lucas Oil products in my customers vehicles as well as my own vehicles. I have saved my customers tons of gas and their vehicles run pristine with the Lucas Oil products I use in there vehicles. Nothing other than Lucas Oil products comes through the door of this shop EVER.

Darrin H., Cambridge, MT

Whether I’m chasing Trophy Game animals or chasing Trophy Fish Lucas Products are running with me

My name is Jim Klinkner the owner of Klinks Premium Wildlife Blend. I'm a firm believer in Lucas Products. I use Lucas Synthetic Outboard Marine Oil in my Bass Boat and I use Lucas oil in my ATV's. I depend on Lucas Products whether I'm chasing Trophy Game animals or chasing Trophy Fish Lucas Products are running with me. My machines seem to love Lucas Products better than the rest. Less plug fouls, less smoke the machines running better and smoother. Thanks Lucas

James K., Dairyland, WI

It was like riding a completely different bike.

I have a 2008 Harley Dyna Street Bob which has been completely customized to include engine work, custom exhaust and multiple dyno tuned sessions. The motor has 31k miles on it. The engine has always run extremely hot and destroys any oil thats in it in less than 2000 miles. This past weekend, I decided to switch over and try Lucas Oil and added 6 oz of Motorcycle Oil Stabilizer to the fresh oil. The bike is extremely quieter now (always had a sewing machine noise) and runs significantly cooler. It was like riding a completely different bike. I am sold. This stuff rocks.

Daniel F.

RELATED NEWS

READ MORE NEWS

Lucas Oil Launches New Line of Lawn Care Engine Oils

March 25, 2026

Lucas Oil Launches New Line of Lawn Care Engine Oils

Tickets On Sale Now for the 70th Annual Lucas Oil 500 Festival Parade

March 10, 2026

Tickets On Sale Now for the 70th Annual Lucas Oil 500 Festival Parade

Governor Mike Braun Appoints Lucas Oil President Katie Lucas to Indiana Destination Development Corporation Board

March 2, 2026

Governor Mike Braun Appoints Lucas Oil President Katie Lucas to Indiana Destination Development Corporation Board