Why do cars leak oil?
Corner Park Garages, Swansea and Cardiff
February 28, 2017 at 2:21 PM
Have you ever parked your car and noticed oil stains on the road? Why has the car suddenly started to leak oil? Many people panic, feeling that the repair will be costly, but the truth is that there are various reasons why your car may be leaking oil.
Below we explain some of these reasons and some ways in which you can stop those leaks from happening.
Oil filter problems
The oil filter in your car is a good place to start when looking for leaks. They can become loose, misaligned and corrode over time. Ideally, every time you change your oil you should check/replace the filter.
Oil drain plug
This is a plug which can be accessed from underneath the car. Once again the seal can become damaged or the plug corroded over time, so this also needs to be checked on a regular basis. A leak around the plug is usually fairly noticeable as you will be able to feel fresh oil.
The filter cap
Any problems with the filter cap, which is located above the point where you pour oil into the engine, are usually very easy to spot. When the engine is running the oil will spurt out due to the high pressure.
This is most commonly where oil leaks occur and usually happen in older cars and those that have run up a high mileage. The oil gasket also comprises of a seal that can become damaged over time, causing the oil to leak.
How to stop those oil leaks
Preventative measures This may seem obvious, but prevention is easier and cheaper than paying for repairs. Remember to carry out regular oil checks and when doing so to check the oil pan, gasket, filter and plug. All seals should also be checked. This should help to prevent most oil leaks from occurring.
Stopping leaks If you are unlucky enough to have an oil leak, then depending upon how severe the leak is, there are several options available. For small leaks, in most cases you can stop this type of leak yourself. Additives such as No Leak may help in the short term. This will help to strengthen the seals, preventing leaks until the oil seals can be changed. Another option is to tighten any seals that have become loose over time, to see if that stops the leak.
Sometimes several small leaks can occur and this can make identifying the source of the leak incredibly difficult. This is when you ideally need to take your car to a garage.
We hope that you have found this information about oil leaks helpful. Remember to carry out regular oil checks and services, and if you are unlucky enough to suffer a large oil leak, then get it checked out by a mechanic as soon as possible. Safe driving!