blackpoolrock

As per the title really - what's the best way to check the oil ? I'm running a oil cooler if it makes any difference ?

blackvenom

Use the dipstick, check the colour, smell, rub some between your fingers (gloves) does it feel oily or sticky. As an oil get Older it will turn black with carbon and other waste substances. You ideally want a amber coloured clear oil. Oil will also break down over time and the hydrocarbon chains will be smaller, Lessing thier effectiveness, If in doubt just change it for the cost of oil.

blackpoolrock

Do you check cold ? First thing in the morning before you start it ?

blackvenom

i would check the levels in the morning, once a week, more often if you are doing a long trip. its a 2min check that could save you an expensive engine rebuild.