I would say no. I get vapor from there all the time. Higher blow-by doesn't always mean you're burning oil.
How much do you add between changes? Keep a good record of miles and oil added to see if your consumption increases.
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Lil' Mack - 89 D250LE 2WD 5 Spd 3. 54 Reg Cab. K&N,"tweaked pump", BD Injectors, Banks Pyro/Boost, 3. 5" Exst tail section straight. E&M Custom seats. Bosch H4, PIAA 80W/80W HdLites. 100W Drv,55W Fogs.
232,500 miles (372,000 Kms) 7700 Hrs. Cummins Power Booster member.
The Original Turbo Diesel