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GMC Sierra 2500HD Duramax 6.6L Turbo. Stock, it's a work truck.
Been having issues recently blowing blue smoke usually after idling for more than a few minutes but has been getting worse.
Decided to do an oil change although it wasn't due for a while. When draining, found it to be really blue and somewhat sparkling. So far no blue smoke.
Had it done at a local oil change shop in the fall.
Any ideas what happened to this?
![Water Liquid Fluid Gas Tints and shades]()
Been having issues recently blowing blue smoke usually after idling for more than a few minutes but has been getting worse.
Decided to do an oil change although it wasn't due for a while. When draining, found it to be really blue and somewhat sparkling. So far no blue smoke.
Had it done at a local oil change shop in the fall.
Any ideas what happened to this?
