If you put the wrong type of oil in the engine, it can lead to a leak. Once this is spotted, you want to have the vehicle looked at immediately. With a quick inspection, you should be able to see the oil all over behind the back of the engine. With blowback, the oil saturation might be on the underbody of the vehicle. The oil that is leaking from the rear main seal will start to pool on the bell housing of the engine and transmission. RELATED: Low Oil Pressure Warning Light Coming On 4. A rear main seal leak that causes rapid oil loss can lead to engine failure and permanent damage. If there’s enough oil in the system to drive home, you may want to try, but use extreme caution. If this light comes on, it indicates that the oil pressure or level is low, and you should take it seriously. Sometimes, the first warning is the oil warning light. Get the seal looked at before the problem becomes worse. While it’s normal to add a small amount of oil from time to time, you shouldn’t need to top it off constantly. It’s even possible that you need to add a quart or more each week. For this reason, you might need to continually add oil to keep the levels up. Low Oil LevelsĪ failing rear main seal can allow a lot of oil to leak through in a short amount of time. RELATED: Why Is My Car Leaking Oil? Common Causes (& How to Fix it) 2. If you see an oil stain on the driveway that wasn’t there before, you should be hunting down the source. It might be easiest to see after you park the vehicle by looking at the driveway or garage floor. For this reason, you might not always see the oil leak. However, the leak might get worse after the engine has been warmed up. Leaking OilĪ defective rear main seal is going to allow oil to seep through. Here is a more detailed list of the signs of a leaking rear main seal to look for: 1. The main symptoms of a rear main seal leak include:
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