Hi, I hope I'm posting this in the right place.
I'll try to be as clear and precise as I can, I'm just looking for a bit of help or advice.
2005 DE engine
83k approx
5w30 Mobil
Always run on V-Power in my ownership
Basically, since owning this car I've had no issues with any smoke coming out of the exhaust. Recently, in the past two to three weeks I have fitted a Motordyne Plenum spacer, K&N Panel filter, Velocity Stack and some resonated decat pipes with lambda spacers. The car has done 100-200 miles with the decats on
The issue I am now having is visible blue smoke occasionally appearing on start up, more so if revved slightly (I obviously don't rev it purposely on cold start, but since noticing the smoke, I was aware it was smoking more when the throttle is pressed). Even more worrying to me is that when the engine gets to temperature and has been sat idling for a minute or two (fan kicks in etc), if I then drive off or press the throttle then there is a large amount of blue smoke puffing out of the exhaust which continues for a short while. The blue smoke doesn't seem extremely evident when the car is driven at WOT as far as I'm aware.
I have changed the PCV valve today and tomorrow I will be removing the plenum and checking underneath the plate to see if any oil has pooled there.
The performance of the engine doesn't seem to have decreased to me and it doesn't appear to be running rough.
I will also be moving to Fuchs Pro S 5w40 oil instead of 5w30 with a K&N oil filter.
My oil pressure sits at just under 60psi when doing 70mph in 6th gear.
I'm mainly concerned that it's possibly the valve steam seals of worst case scenario, the rings!
Any input would help, or has anybody else had a similar experience.