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

I am amazed at what it has done to my engine noise.

I own a 2008 Ford F`50 with a 5.4 engine and 137,000 miles. Over the past year my engine developed the Ford death rattle. It's known as cam phaser problems. This was when pulling a trailer at low idle. I decided to try out Lucas High Mileage Oil Stabilizer additive.T his was 12,000 miles ago, and I am amazed at what it has done to my engine noise. It's been gone since a week after I started using it. I told my son in law about it, as his Honda engine is using oil and fouling plugs. He is amazed at how it has helped his engine trouble and he has not fouled a plug since he started adding it.
I also have added it to my old Briggs and Stratton 5 hp engine. It smokes really bad, since adding it has cut it down 80 percent. It has made believers out of us. Thanks

Jim T., Grand Rapids, MI

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’ve been using Lucas Products for my vehicles for many, many years now with complete satisfaction.

I've been using Lucas Products for my vehicles for many, many years now with complete satisfaction. I came upon their gun oil many years back while at my local auto parts place while still living in California. Been using it ever since while all the other products I have collect dust.

Tom B.

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

Now the engine is “humming” like it was brand new.

Complete Engine Treatment added to engine oil eliminated squeaking from engine during ignition and now engine is "humming" like it was brand new. 2003 LEXUS RX 300 108K.

Darwin F., Honolulu, HI

RELATED NEWS

READ MORE NEWS

Lucas Oil President Katie Lucas Named Indiana Business Journal C-Suite Award Honoree

December 2, 2025

Lucas Oil President Katie Lucas Named Indiana Business Journal C-Suite Award Honoree

Morgan and Katie Lucas Named Outstanding Philanthropists of the Year by the Association of Fundraising Professionals

November 13, 2025

Morgan and Katie Lucas Named Outstanding Philanthropists of the Year by the Association of Fundraising Professionals

Lucas Oil Promotes Naomi Furgiuele to Chief Product Officer

November 6, 2025

Lucas Oil Promotes Naomi Furgiuele to Chief Product Officer