Already for a year or so my 4.7 is using oil, it was probably 3 Lts in 8000 Km. I changed the PCV twice and had an idea that it helped for a while, but then it came back again. Now its using around 1 Ltr in every 600 Km and i also see some smoke from the exhaust when giving gas. With 153.000 Km on it, would it be normal for the valve stem seals to cause a usage like this? Other then this or pistons oil scrapers, is there anything else to look at? Is there any way, without dismantling, to find the cause?
JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks /
Pirelli Scorpion ATR 245/65/17/
Transgo reprogramming shiftkit.