Below you will find the best synthetic oil for a 1990 Harley-Davidson FLHR Road King. 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 1990 Flhr Road King
| Product Name | Product Description | Capacities | Product |
|---|---|---|---|
| Engine Oil 20W-50 Synthetic V-Twin Motorcycle Oil |
This 20w-50 motorcycle oil for your 1990 Harley-davidson Flhr Road King 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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| Primary Chain Case Oil 20W-50 Synthetic V-Twin Motorcycle Oil |
This 20w-50 motorcycle oil for your 1990 Harley-davidson Flhr Road King 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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| Primary Chain Case Oil Synthetic V-Twin Primary Fluid |
This is an awesome fluid for bikers who want a dedicated primary chaincase lubricant. Protect your 1990 Harley-davidson Flhr Road King with the best fluid made in the USA. |
MVPQT-EA
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Recommended oil filters for my 1990 Flhr Road King
| Product Name | Product Description | Product |
|---|---|---|
| AMSOIL EaOM Motorcycle Oil Filters | Great oil filter for your 1990 Harley-davidson Flhr Road King. Check out our synthetic oil for your motorcycle as well. |
EAOM135-EA
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| AMSOIL EaOM Chrome Motorcycle Oil Filters | This is a great motorcycle oil filter for the 1990 Harley-davidson Flhr Road King. Made in the USA. |
EAOM135C-EA
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Recommended transmission fluids for my 1990 Flhr Road King
| Product Name | Note | Capacities | Product Description | Product |
|---|---|---|---|---|
| 20W-50 Synthetic V-Twin Motorcycle Oil | Transmission |
This 20w-50 motorcycle oil for your 1990 Harley-davidson Flhr Road King 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 1990 Harley-davidson Flhr Road King is top quality and made in the USA. |
MVTQT-EA
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No matter hard you ride, synthetic motor oil will keep your motorcycle moving along. At high temperatures, synthetic oil doesn't break down like conventional oil – so at high RPMs or over rough terrain, synthetic oil will keep you riding even when conventional oils won't.
