Site Traffic Information and Cookies

We use cookies to collect and analyse information on our site's performance and to enable the site to function. Cookies also allow us and our partners to show you relevant ads when you visit our site and other 3rd party websites, including social networks. You can choose to allow all cookies by clicking 'Allow all', or manage them individually by clicking 'Manage cookie preferences', where you will also find more information.

Manage cookie preferences

  1. HOME
  2. LEARN
  3. MOTORCYCLE MAINTENANCE
  4. 4 CYCLE ENGINE OILS

4 CYCLE ENGINE OILS

Four-stroke motorcycle engines work harder than four-stroke car engines. So our 4-stroke engine oil is liquid engineered to meet their extreme demands.

Four cycle oils page

Which four-stroke engine oil is best?

If you’re riding a motorcycle with a four-cycle engine, you would be forgiven for thinking it’s similar to the four-cycle engine in a car.

 

The truth is that motorcycle engines work a lot harder than car engines: revving higher and generating more power per cc than most any car. Staying on top of your oil level and oil changes is incredibly important, and so is choosing a motorcycle oil that meets the original manufacturer’s specification, as well as the demands of the way you ride.

POWER1 4T engine oil

Continuous protection. Superior acceleration.

POWER1 4T Engine Oil is the cutting edge motorcycle oil that delivers superior acceleration at every touch of the throttle.

 

Ultimate power and performance

POWER1 4T Engine Oil with Trizone Technology™ is a premium-quality, full synthetic 4-stroke motorcycle oil designed to ensure maximum power and performance, even under the most demanding riding conditions. Its anti-friction formulation is actually proven to increase acceleration, compared to conventional motorcycle oils.

 

Benefits

 

  • Castrol POWER1 4T with Power Release Formula is designed, tested and proven to deliver superior acceleration as it flows fast and minimizes internal engine friction
  • It is an advanced, full synthetic, premium quality engine oil designed for 4-stroke motorcycles
  • Exceeds Specifications API SL, JASO MA-2

Specifications

  • API SERVICE: Exceeds API SL
  • JASO (T903): JASO MA-2
  • VISCOSITY: SAE 5W-40 // 10W-40 // 10W-50
Product Data Sheet
Material Safety Data Sheet
Castrol Power1 1 Quart Full Synthetic Motorcycle Oil
POWER1 V-Twin 4T

Liquid engineered for modern V-Twins. Designed to deliver acceleration

Castrol POWER1 V-Twin 4T is the cutting edge motorcycle oil designed for modern V-Twins. It has been engineered and tested to deliver high performance and throttle response in Harley-Davidson® motorcycles.

 

Full synthetic designed for modern V-Twins

Castrol POWER1 V-Twin 4T with TriZone Technology™ is a full synthetic 4-stroke motorcycle oil.

 

Benefits

  • Castrol POWER1 V-Twin 4T 20W-50 is a full synthetic 4-stroke motorcycle oil exclusively designed for modern V-Twin engines, transmissions and primary chaincases
  • Engineered and tested to ensure performance in Harley-Davidson® Motorcycles
  • Full synthetic formulation provides excellent oil flow over a wide temperature range
  • Exceeds Specifications API SL, JASO MA-2

Specifications

 

  • API SERVICE: Exceeds API SL
  • JASO (T903): JASO MA-2
  • VISCOSITY: SAE 20W-50
Product Data Sheet
Material Safety Data Sheet
Castrol Power1 V-Twin 1 Quart Full Synthetic Motorcycle Oil
Motorcycle family

Motorcycle oils

View other Castrol Oils & Lubricants for your Motorcycle.
Where to buy

Where to buy

Find out where you can buy Castrol Oils & Lubricants for your Motorcycle near you.

Related links

Far away look at moving motorcycle on the road

2 stroke engine oil

If you're running a 2-stroke engine, your choice of 2-stroke engine oil is important. Castrol® 2 cycle engine oil reduces harmful deposits and controls exhaust smoke.
A technician checking on motorcycle engine oil

Motorcycle mineral oils

Mineral, or conventional motorcycle oil, is a budget-conscious choice for older engines. Yet it still offers all of the Castrol liquid engineering you need.
Two-stroke engines – what makes a two-cycle engine different?

Two-stroke engines – what makes a two-cycle engine different?

Often found in scooters, dirt bikes, jet skis, smaller outboard motors and lawn equipment like lawn mowers and chain saws. Learn why & the special oil needed.
Front view look at fast moving motorcycle on the road

Semi synthetic motorcycle oils

Castrol's part synthetic motorcycle engine oils combine the benefits of full synthetic and conventional motorcycle oils to ensure performance and protection.