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Best recommended synthetic oil, filter, transmission fluid for my 1990 Harley-Davidson FLSTN Nostalgia

Motor oil designed for your 1990 Harley-Davidson FLSTN Nostalgia

AMSOIL is the pioneer of synthetic oil used in cars in the US.
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Your Vehicle's Information

Year:

1990

Make:

Harley-Davidson

Model:

FLSTN Nostalgia

Engine Size:

1340 (82 ci)

Engine #:

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Below you will find the best synthetic oil for a 1990 Harley-Davidson FLSTN Nostalgia. 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 Flstn Nostalgia

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 Flstn Nostalgia 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
20W-50 Synthetic V-Twin Motorcycle Oil MCVQT-EA
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Add To Cart
Primary Chain Case Oil
20W-50 Synthetic V-Twin Motorcycle Oil
This 20w-50 motorcycle oil for your 1990 Harley-davidson Flstn Nostalgia 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
20W-50 Synthetic V-Twin Motorcycle Oil MCVQT-EA
Add To Cart
Add To Cart
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 Flstn Nostalgia with the best fluid made in the USA. MVPQT-EA
Synthetic V-Twin Primary Fluid MVPQT-EA
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Add To Cart

Recommended oil filters for my 1990 Flstn Nostalgia

Product Name Product Description Product
AMSOIL EaOM Chrome Motorcycle Oil Filters This is a great motorcycle oil filter for the 1990 Harley-davidson Flstn Nostalgia. Made in the USA. EAOM135C-EA
AMSOIL EaOM Chrome Motorcycle Oil Filters EAOM135C-EA
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Add To Cart
AMSOIL EaOM Motorcycle Oil Filters Great oil filter for your 1990 Harley-davidson Flstn Nostalgia. Check out our synthetic oil for your motorcycle as well. EAOM135-EA
AMSOIL EaOM Motorcycle Oil Filters EAOM135-EA
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Add To Cart

Synthetic oil will improve your motorcycle engine's lifespan, keep it clean while decreasing emissions and fuel consumption. You are saving time that you spend on trail or road.

Try our motorcycle octane boost! It will clean out your engine with awesome detergents that help combustion chambers and fuel delivery systems maintain cleanliness, power, and efficiency. Eliminate engine ping and knock for increased power.


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If you're looking for another year, make or model instead of this 1990 Harley-Davidson FLSTN Nostalgia motor oil, try one of these similar models below. We try to keep one page for each model vehicle.

Additives in synthetic motor oils run the gambit from anti-rust, anti-corrosion, and detergents and dispersants – all to keep your motorcycle engine running optimally even in harsh conditions.

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