The easiest way to check motorcycle engine oil is through an inspection window. If your bike has one, checking your motorcycle oil is easy with our simple guide.
Checking oil through an inspection window page
If your bike is reasonably modern, it will often have an inspection window, low down on one side of the engine. You may have to get close to the ground to see inside properly, and we also recommend doing this in daylight, so you can get an idea of the level and the condition of your oil.
The inspection window will have marks at the top and the bottom, and your engine oil level should be somewhere between the two. If the level is above or below these lines, you must act immediately to either drain a little oil away or to top off your oil level.
Just as importantly, you also need to assess the condition of the oil. It should be either green or yellow, as well as shiny and semi-transparent.
If your oil is dark brown or black and you can't see through it, or you can see sludge deposits, it is definitely time for an oil and filter change.
Alternatively, if you can see metal particles in the oil, this can be an early indication of engine problems ahead; while if the oil looks at all milky, it can often indicate a coolant leak. In either of these two cases, you should consult a mechanic or repair shop to rule out or deal with serious problems as soon as possible.
It's very important to check the level and quality of motorcycle engine oil on a regular basis. The good news is that this is an easy task, whether your motorcycle has an oil inspection window or a dipstick. There are just a few easy rules that you need to follow.
It's important to check motorcycle oil at regular intervals in order to maintain your bike's performance and safety. Fortunately, this is an easy task even if your bike has a dipstick rather than an inspection window. Just follow our simple guidelines to assess your motorcycle oil level and condition in minutes.
Most bikes burn off a little engine oil, and it's important to check the level and condition of motorcycle engine oil regularly. It's also essential to maintain the right level of engine oil by topping off with the correct grade of motorcycle oil whenever your inspection window or dipstick check says your oil level is low.
Pretty much the best thing you can do for your bike is to change its engine oil regularly, especially as your gears will generally share the same oil supply. The good news is that it's pretty easy to change you motorcycle engine oil, with just a few simple tools and few easy rules, as we explain here.
It may be a natural product, but waste oil can be incredibly harmful to the environment if not disposed of correctly. Castrol is committed to recycling oil to the greatest possible extent, and we encourage every valued customer to play their part by learning how to make sure their used motorcycle oil is safely recycled.
How often to check motorcycle engine oil? Our answer will always be to check it as often as possible. That's because even the best motorcycle oil won't protect your engine if the level gets too low, and even if your bike doesn't usually burn much oil, a few hot days and hard rides can burn off more oil than you might expect.
Motorcycle brake fluid, or motorcycle brake oil as it's also known, is a highly engineered fluid that has the ability to withstand extreme temperatures and look after the entire brake system. It's vital to check the level of your brake fluid regularly, and to follow our simple guide to topping off whenever necessary.
While many motorcycles have one sump that lubricates the engine and transmission, some classics have a 'pre-unit' construction that means they need separate gear oil. The good news is that it's fairly easy to do this job at home by following our simple, step-by-step guide to changing motorcycle transmission oil.