How to tell if your LB7 injectors are failing before they ruin your oil?

[NomadNuts]

Is your LB7 "making oil" or just blowing haze at stoplights?

Between the Paper Towel Halo Test and monitoring rising dipstick levels, what’s your secret for catching a leak before it kills your bearings? Drop your diagnostic tips or "horror stories" below—how many miles did your injectors actually last?

 

[BoostedBison]

The 'making oil' part is the real silent killer on these LB7s. Since the injectors are under the valve covers, a leak goes straight into the crankcase, not out the tailpipe. My secret? The smell test. Pull your dipstick every Saturday morning—if it smells like a gas station instead of engine oil, you’re in trouble. I also do the Halo Test on a white paper towel every 2,000 miles. If the oil drop creates a clear fuel ring around the soot, I’m ordering a set of SAC injectors immediately. Don't wait until the oil gets so thin it 'washes out' your main bearings—that's a $15k mistake.