Castrol Power 1 Ultimate 4T 10W-40
Fully synthetic 4-stroke motorcycle engine oil
DetailsBest Seller
in Motorcycle Engine Oil£36.08
RRP £58.73 - save £22.65
Size
Select an option
Online
In-store
Seen it cheaper?
Get a price match
Get a price match
FREE delivery & returns
Quick find: 2443472
Verified Customer Reviews for Castrol Power 1 Ultimate 4T 10W-40
Our customers say…
Customers have consistently praised Castrol oil for its outstanding quality and performance, particularly highlighting its impact on smoother gear changes and engine protection. Many have used it for years and appreciate the trustworthiness and history of the brand. Customers frequently mention its competitive pricing, describing it as excellent value compared to other brands. They find confidence in knowing they are buying a reliable product that ensures their motorcycles, such as Triumphs and various others, are well-protected.
AI-generated from the text of our verified customer reviews
Helpful?
Best bike oil
07 Feb 2026 by Anonymous
Best oil by miles, worth the extra pounds
Helpful?
Good price
28 Jan 2026 by Gerry
Good price and great service
Helpful?
Quality product at good price
06 Jan 2026 by Anonymous
Castrol has always been a name to trust especially for oil. At this price great value.
Helpful?
Great oil
05 Jan 2026 by Ben T
Quality product with good rating online, fair price for this oil.
Helpful?
Great oil
15 Dec 2025 by Anonymous
Great oil
Helpful?
Power 1 best oil.
10 Dec 2025 by Graham
This is best oil always, great price, bike runs perfect, smooth gear change.
Helpful?
Quick delivery
01 Dec 2025 by Anonymous
Excellent service thanks
Helpful?
Fully Synthetic Lubricant at an excellent price!
21 Nov 2025 by Steve
Fully Synthetic Lubricant at an excellent price from a top brand, was previously marketed as Power 1 Racing 4T, so now can be confusing as Castrol market it as 'Power 1 Ultimate', but also sell the lesser option 'Power 1' in very similar branded packaging!
Helpful?
Great price.
19 Nov 2025 by Mike
It's oil. Very slippery.
Helpful?
High quality product
18 Nov 2025 by Anonymous
Good stuff which I use regularly, and a good price too.
Helpful?
Trusted quality
15 Nov 2025 by Firebladeaid
Good value, ticks all the box's of requirement. Good sturdy container too.
Helpful?
Well packaged. Quick delivery
10 Nov 2025 by Anonymous
Works as it should
Helpful?
Quality oil
07 Nov 2025 by Neil
Wouldn't use any other oil, excellent product at a very good price and excellent service
Helpful?
Good price and fast delivery
27 Oct 2025 by Anonymous
Would recommend and reuse myself.
Helpful?
Castrol power 1 ultimate 4T 10w40
25 Oct 2025 by Anonymous
Purchased ready for storage oil change....... always been a fan of castrol, latest spec is high quality oil with fantastic price compared to rivals. Great service from SBS.
Helpful?
Great service as always
23 Oct 2025 by Ron P
Have used Castrol for servicing my Honda Fireblade and Triumph Tiger for a number of years. Sportsbikeshop is always the first place I check and buy from. Excellent service as ever.
Helpful?
Great price
02 Oct 2025 by Alex
Well what can you say about oil, this oil has been used in my Gen 3 Tiger 1200 XCA since new and the engine hasn't missed a beat and on the 20k service valves were fine, hope the upcoming 40k service is the same.
Helpful?
Good oil for the Bonneville
17 Sep 2025 by Kevin D
Normally use Silkolene but thought would give this a try as recommended by Triumph. So far gear changes appear quieter. Good price from Sportsbikeshop and excellent service.
Helpful?
Description
Manufacturer
Castrol Power 1 Ultimate 4T 10W-40
- Engineered for outstanding performance
- Suitable for modern high performance 4-stroke motorcycles
- 50% better wear protection vs industry limits
- Enables smooth clutch engagement
- Keeps the engine cool over an extreme 12,000 kms test
- Maintains engine power over 48,000 kms
Formerly known as Castrol Power 1 Racing, Power 1 Ultimate's 5-in-1 formula is engineered to give your bike outstanding performance with 5 ultimate benefits. Castrol Power 1 Ultimate is also suitable for modern high performance 4-stroke motorbikes to which it offers outstanding performance and protection.
Excellent Acceleration
Castol Power 1 Ultimate is proven to accelerate ahead of a competitor's market general oil for bikes.
Excellent Protection
Castrol Power 1 Ultimate provides 50% better wear protection vs industry limits across bikes and scooters.
Smooth Riding
Castrol Power 1 Ultimate enables smooth clutch engagement.
Keeps the Engine Cool
Castrol Power 1 Ultimate keeps the engine cool even over an extreme 12,000 kms test.
Enduring Performance
Castrol Power 1 Ultimate maintains engine power over 48,000 kms in a racetrack durability test.
| API Standards: | API SN |
| JASO Standards: | JASO MA2 |
Questions and Answers
No questions or answers have been posted for this product…
You may also like...
You won’t get it cheaper. Our Price Match Promise.
Find it cheaper at any major motorcycle accessory retailer, online or in-store and we‘ll match it.
How to request a price match.