Hi all, just bought 08 tdv8 in mint condition from a good friend.110k miles and never missed a beat.Now it's mine I've got a problem ( typical). Noticed an oil leak on my drive and found the dipstick was partly out and oil had been spitting out. Re-fitted dipstick and leak fixed (so I thought). Another leak today and same thing, dipstick loose. The car drives superb, no loss of power, no warning lights, no smoke, nothing. A local garage suggests PCV valve. Any thoughts anyone, would be grateful, thanks