Below you will find the best synthetic oil for a 2018 Harley-Davidson FLS Softail Slim. Maximize your vehicle's potential with 100% full synthetic oil that is made in the USA! For more than the past 50 years, AMSOIL has perfected the art of maximizing efficiency and engine life. The advanced synthetic formulas deliver superior protection from heat, friction, and wear, keeping engines as good as new for miles. Upgrade to AMSOIL today and experience better performance, reliability, and reduced oil consumption. Click add to cart for more details. Sign up as a preferred customer and get discounts and more! The oil type, capacity and oil filter (if available) are listed below and verified for accuracy. Upgrade now!
Recommended oil for my 2018 Fls Softail Slim
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Complete Oil Change Kit V-Twin Oil Change Kit (HDMC) |
This oil change kit is specially made for your 2018 Harley-davidson Fls Softail Slim and has everything to do an Amsoil oil change with one purchase. Made in USA. Protect your motorcycle with the best synthetic oil. |
HDMC-EA
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| Complete Oil Change Kit V-Twin Oil Change Kit (HDMB) |
This oil change kit is made for the 2018 Harley-davidson Fls Softail Slim. You can change your oil by ordering this one convenient kit and protect your engine! Comes with 5 quarts of 20W-50 synthetic oil, an Amsoil motorcycle filter and an O-Ring drain plug. Made in USA. |
HDMB-EA
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| Engine Oil 20W-50 Synthetic V-Twin Motorcycle Oil |
This 20w-50 motorcycle oil for your 2018 Harley-davidson Fls Softail Slim is a top oil for those who want the best protection and extend the life of the engine. Top research goes into this lube to protect air cooled engines, wet-clutch lubrication, and even protects when your motorcycle is in storage. Offers great protection for short trip usage as well. Protects gears, chains and prevents rust. Meets or exceeds the requirements of both foreign and domestic motorcycles. Made in USA. | Capacity 5 Quarts (Service fill) |
MCVQT-EA
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| Engine Oil SAE 60 Synthetic V-Twin Motorcycle Oil |
This motorcycle oil is a top quality synthetic made for the 2018 Harley-davidson Fls Softail Slim. The formula is high tech and will protect your engine from high RPM conditions. | Capacity 5 Quarts (Service fill) |
MCSQT-EA
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Recommended oil filters for my 2018 Fls Softail Slim
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL EaOM Motorcycle Oil Filters | Get the best motorcycle oil filter for the 2018 Harley-davidson Fls Softail Slim and it is made in the USA. |
EAOM134-EA
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| AMSOIL EaOM Chrome Motorcycle Oil Filters | Get the best oil filter for your 2018 Harley-davidson Fls Softail Slim. |
EAOM134C-EA
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Recommended transmission fluids for my 2018 Fls Softail Slim
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| 20W-50 Synthetic V-Twin Motorcycle Oil | Transmission |
This 20w-50 motorcycle oil for your 2018 Harley-davidson Fls Softail Slim is a top oil for those who want the best protection and extend the life of the engine. Top research goes into this lube to protect air cooled engines, wet-clutch lubrication, and even protects when your motorcycle is in storage. Offers great protection for short trip usage as well. Protects gears, chains and prevents rust. Meets or exceeds the requirements of both foreign and domestic motorcycles. Made in USA. |
MCVQT-EA
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| Synthetic V-Twin Transmission Fluid | Transmission |
This transmission fluid for the 2018 Harley-davidson Fls Softail Slim is top quality and made in the USA. |
MVTQT-EA
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| Synthetic V-Twin Primary Fluid | Transmission |
This is an awesome fluid for bikers who want a dedicated primary chaincase lubricant. Protect your 2018 Harley-davidson Fls Softail Slim with the best fluid made in the USA. |
MVPQT-EA
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Did you know synthetic motor oils include viscosity modifiers? They help keep your engine oil viscosity consistent as temperatures increase rather than the oil becoming thin and less viscous.
