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Checking the oil in a Sierra 2500 HD is fairly easy and should be done once a month. Note that most GMC have an oil pressure gauge next to the speedometer - this gauge does not tell you what your oil level is, however the video above will show you how check the oil level in your 2015 GMC Sierra 2500 HD. Make sure your engine is cold when you check the oil in your Sierra 2500 HD. Otherwise the dipstick will read slightly low. In addition to checking the oil level, you also want to look at the condition of the oil when you have the dipstick out. If the oil in your Sierra 2500 HD is dirty or smells like gasoline, you probably need an oil change.
If you notice that the oil level in your Sierra 2500 HD is extremely low or empty, fill it up and check it again the next time you drive. If it is extremely low again, have your mechanic take a look before driving it much more.
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup
Odd electrical problems that come out of nowhere can often signify a blown engine fuse - check and change yours here!2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup
Do you ever get into your friend's car and notice a bad smell? A dirty cabin air filter could be the culprit2015 Chevrolet Silverado 2500 HD LT 6.6L V8 Turbo Diesel Crew Cab Pickup
Don't be the guy with your third brake light burnt out2015 GMC Sierra 2500 HD 6.0L V8 FlexFuel Extended Cab Pickup