

🏍️ Ride Hard, Protect Harder – The Ultimate 4T Oil for the Modern Rider
Castrol Go! 10W-40 4T Motorcycle Oil is a mineral-based lubricant engineered with Trizone technology to protect the engine, clutch, and gearbox simultaneously. It offers exceptional thermal and viscosity stability, superior wear resistance, and prevents harmful deposits, making it ideal for high-stress, high-rev motorcycle engines. Certified beyond industry standards, this 1-liter pack of 6 bottles is a trusted choice for riders seeking reliable, long-lasting engine protection.













| ASIN | B002IANOR6 |
| Best Sellers Rank | #106,993 in Automotive ( See Top 100 in Automotive ) #650 in Motor Oils |
| Brand | Castrol |
| Brand Name | Castrol |
| Compatible with Vehicle Type | motorcycle |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 229 Reviews |
| Global Trade Identification Number | 00079191061039 |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | Castrol |
| Manufacturer Part Number | 06103 |
| Package Information | Bottle |
| UPC | 079191121467 079191061039 |
| Unit Count | 202.86 Fluid Ounces |
| Vehicle Service Type | motorcycle |
| Viscosity | 10W-40 |
H**R
Fast Shipping.
As Described. Fast shipping. Expected two week shipping, received in five days (including a Sunday). Recommend. Will use again.
D**G
Run this in all our ATVs and my 1978 Yamaha XS1100 motorcycle - good stuff, and affordable!
I trust Castol products - I got nearly a quarter million miles on my old GMC Safari van before I scrapped it from rust. The engine and drive train were still in great shape! Use this in my off-road vehicles because it won't mess up the clutch...
K**H
Oil
Will work good enough for the pit bikes. Pricing wasn’t too bad
P**G
This is the recommended motor oil for antique motorcycles
I have been searching for motor oil that in not only designed for motorcycles but one that is recommended for antique motorcycles. This is what has been recommended to me. I have a 1958 Harley Davidson.
M**Y
Good Stuff
Showed up quickly with no issues. Will order again
H**R
clear oil
for my old motorcycle
R**L
Good value oil
Looked around for oil that met the requirements for my motorcycle and this one fit what I needed and was reasonably priced. Seems to work fine.
J**R
Specifically made for motorcycles with a wet clutch
I've used Castrol oil for yours and have no problems
Trustpilot
2 weeks ago
2 weeks ago