take a look at my spark plugs please

[infurno]

Ever since I got my E34 a year back its burnt oil and smoked when I first start it. It lasts only a few seconds and its gone. There is no smoke while driving. Sometimes if I start the car and don't throttle a bit to burn the oil in the cylinders properly, the spark plugs foul up and one by one stop functioning. This is a big problem during the winter, I have to change my plugs every two weeks! They have worked fine for months now that the weather is better, but fouled up again a few days back.

There is no smoke while the car runs. No smoke during throttle. Only for a few seconds after ignition.

I always use highest octane fuel, hoping it will burn hotter and keep the plugs clean.

My logic is that if it was bad piston rings it would always smoke but that's not the case.

Do I just have bad valve seals?