Its strange, because it can be fine for weeks even months without any problems. Except for a bit of smoke at ignition I tend to forget about it. (Unless its winter where it just happens so damn often)Originally Posted by Dave M
Out of interest, how much oil/coolant do you use per 1000 miles, km, fill up, minute. As elluded to, we'd be speculating to try and diagnose it without results of wet/dry compression or leak down tests. I had a single cylinder with a low dry compresion value due to a loose bottom end, which caused smoking following vacuum conditons (coasting down long hill in gear). Even my one 'bad' plug looked new compared to any of your plugs. If its both botttom and top end, might be easiest to drop in a used engine, depending on expertise, time and funds.
Dave
Its been running great, till it went out a few days back. Went to the BMW dealership to attempt getting my radio unlocked, when I started the car I forgot to give it a bit of throttle and as soon as I was on the street I felt a reduction in power and a vibration in the car. I knew I was down to 5 cylinders again.
I have not had to add oil in months, I'm at about the 1/2 way level right now. (which I will take care of tonight) During the winter I have to add a bit every week.
There are no strange engine noises, and with clean plugs you can barely tell the engine is running.
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