Scottoil comes in 2 different forms: Original Blue Scottoil and High Temperature Red Scottoil.
Both oils have the same chemical make up although the High Temperature Scottoil is more viscous and therefore slightly thicker, meaning it will flow more slowly in higher temperatures than traditional blue Scottoil. Other than that, they’re the same and can even be mixed. So if you’re changing over from one oil to the other there’s no need to drain the system and start again, they’ll blend, saving you waste.
Your choice of oils is dependent on the average riding temperatures you usually experience. Between 0–30ºC we would recommend Traditional Blue Scottoil. For higher average temperatures go for red as it will be a more suitable lubricant on the chain and will also be easy to regulate through the vacuum operated systems. The Red Oil has an operating range of 20-40ºC.
In some cases we would recommend you use High Temperature Scottoil if your reservoir is located near a hot spot on the engine, as this will warm the oil in the reservoir to the operating range more suited to the red oil.