Tama lahat ung mga analysis nila.However, a white smoke coming out of your exhaust pipe does not necessarily mean loose compression or related problems.I've experienced the problem of white smoke coming out of my exhaust pipe, and oil consumption with my 92 lite ace.I let the cylinder compression checked, it was okey. It was found out that the valve seal were already not functioning, that's why oil is slipping to the cylinder and get burned during combustion, hence the white smoke.

I hope your problem is the valve seals.