To measure the level in your tank, first make sure you have a suitable dipstick (this could be a clean garden cane or a broom handle) and a tape measure.
Take the cap off the tank and put the dipstick right down to the bottom of the tank.
When you withdraw the dipstick, the oil will leave a mark on the stick showing the level of oil in the tank. Take a tape measure and measure the distance from the bottom of the stick to the top of the oil level mark and record the measurement in mm.
Then put the cap back and submit your reading online. If you are unsure how to do this, please let us know via email and we will be happy to get this added to your account.
