HOW do I prevent fuel dilution in my engine oil during the regen cycle?

[BoltAndBrawn]

My 2010 6.4L is constantly "making oil"—I checked my dipstick today and it's nearly an inch above the full mark after just 3,000 miles. I know the regen cycle sprays fuel on the exhaust stroke, but HOW much fuel dilution is considered dangerous before I risk washing out my main bearings? Should I be changing my oil every 2,500 miles, or is an EGR/DPF delete the only way to stop this from killing the bottom end?

 

[MetalMilitia]

The 6.4L is notorious for this because it uses the rear two cylinders to spray fuel on the exhaust stroke for regen. HOW much is too much? Most oil analysis labs consider 5% to 7% fuel dilution the "danger zone" where the oil's viscosity breaks down and can no longer protect your main bearings. An inch above the full mark on the dipstick is way past that—you’re likely at 10% or more. At that point, you aren't just lubricating with oil; you're using a mix that has the consistency of water, which will "wash out" the bearings and lead to catastrophic engine failure.