Oil Leak somewhere?

DODGEGIRL96

MEMBER
2017 DODGE CHARGER
3.6L
6 CYL
4WD
AUTOMATIC
148,536 MILES

I took my car to get an oil change and the dealership informed me that the car may have an oil leak somewhere. I had them diagnose the car and they then informed me it’s oil in the coolant reservoir. The car isn’t running hot, there’s no black or grey smoke coming from the exhaust or anywhere. They told me they can’t help finish the diagnose because they don’t have anyone certified who knows about dodges that well. My question is, is this a blown head gasket possibly or is this something small that can be fixed?

Saturday, October 18th, 2025 AT 8:11 AM

1 Reply

STEVE W.

MECHANIC
15,233 POSTS

Being a 3.6 the most common cause is that the oil cooler is leaking. Unfortunately it is buried under the upper and lower intake and isn't a lot of fun to repair. However it's very common. Pretty much any decent shop can do it not just a dealer. If you have the tools and time you could even DIY it, but it's not an ideal thing to do for a first time repair as you pretty much remove everything down to the top of the engine block and cylinder heads. It's also a good time to change the spark plugs if they haven't been done in a while.
If you want to see the problem and the repair you can watch David's videos on it he covers the repair much better than I can explain it.
https://www.youtube.com/watch?v=f0doIZI-fp4 and
https://www.youtube.com/watch?v=xGz-A0ZX3KM

Was this

answer

helpful?

Yes

No

+1

Saturday, October 18th, 2025 AT 8:43 AM