Is there a high mileage oil that stands out from others when it comes to seal conditioners. Have a 2011 impala will leak 1-1 1/2 quarts over 3 months. Have been using mobil 1 5w30 high mileage the past 2 oil changes, and the puddle of oil in the driveway doesn't look any smaller. Thanks
Best high mileage oil for leaks
- Thread starter cmarshall78
- Start date
The oil that comes with a engine gasket set. I don't think High mileage oil is going to help a leak that size.
Do you know where the leak is coming from?
If a combination of ATP AT-205 & Valvoline MaxLife red bottle doesn’t help slow it down, then nothing will!
I’m using Valvoline high mileage in my 260k mile Chevy pickup. It makes 3k mile OCI’s without adding oil, still leaks a bit though. I guess I could regasket the engine or just let it roll.
You already which way I went….
You already which way I went….
Mobil 1 High Mileage already has good seal conditioners in it so chances are no other high mileage oil will fix this leak, but you may want to consider switching to something a bit cheaper like Supertech if you have to continue adding.
AT-205 is a good product that does work there is many success stories on it, but me personally after the leak is either slowed or stopped I would do an oil change to get it out of the system and run whatever high mileage oil you prefer.
AT-205 is a good product that does work there is many success stories on it, but me personally after the leak is either slowed or stopped I would do an oil change to get it out of the system and run whatever high mileage oil you prefer.
I have been using SuperTech High Mileage Full Synthetic 5W-30 oil for quite a while in my 135K+ mile Odysseys. None of them leak any oil at all. I would like to think that the seal conditioners in that oil are helping, but it's hard to know for sure.
Has anyone else had a good experience where SuperTech High Mileage Full Synthetic reduced or eliminated an existing leak?
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