I just had the valve stem seals surgery completed.
I never had a big oil burn cloud. It puffed like Alexander Graham Bell
calling out " Watson, can you hear me?"

After a prolonged idle, then a aggressive throttle punch, it would puff a little smoke.

The oil consumption was never more than a few ounces.

I decided to do a Seafoam induction system spray decarbonization.

I watched the video, set up the apparatus correctly and let her rip.

My beautiful wife was my throttle jockey. She kept the RPM between, 1700
and 2000.

I let the engine soak after the can was empty for 15 minutes.
I went for a spirited drive, smoke was pouring out the 4 pipes.

It was so thick, another driver pulled up and asked if my X5 was okay.
I told him, I used an engine cleaner and planned on a night mission.

The engine bogged down and the CEL lit up.
Engine was running poorly, low on power and I felt I had just ruined
my engine.
Today I started up the 4.4i engine and the CEL was out. The engine was running
much smoother, and had a lot more power.

If I were to do this again, I would increase the RPM to 2500.
So as to get more vaccine sucking in the fluid.

The N62 has very low intake vacuum.

Runs great now, thought I toasted my engine.

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2003 4.6is X5
2003 525it
2003 E53 X5 Standard shift