Cultus E2 2016 Model compression test - reducing oil

[atifsrehman]

I have done compression test of cultus 2016 which was reducing oil , i am already using 20w50 shell

Resultus

1 ) cyclinder 1 : 160
2 cylinder 2 : 170
3 Cylinder 3 : 160
4 cylinder 4 : 160

As per mehnic these test are ok and engine seems to in good condition , i have no idea what is wrong with engine , can any expert please guide me what can be the issue , should i go for engine overhaul as there is blue smoke in the morning otherwise there is no smoke.

[pwuser166331039855]

These compression test values are ok.

1st I will suggest to change the source of your motor oil.
Buy or replace it from well-known shop/dealers only.

Lets suppose if you are already buying from very trusted shop, then try to change the brand. Try Caltex or Kixx or ZIC etc.

Are you sure there are no over-heat issues in your car ?
Have you changed its head gasket or something in past ?

[atifsrehman]

Thank you for the reply. Yes, the vehicle does heat up once on the motorway because I mostly use the vehicle within the city.
On the highway, with the AC on and a high load, coolant usually overflows into the reservoir bottle and leaks out, so I top up the coolant.

According to the mechanic, there are no bubbles in the radiator, so there's no gasket leak, which I am really skeptical about. That's why I went for a compression test.

As far as I know, no gasket has been changed , so far i have used KIXX , Shell and this time i have used caltex 20w50 .

[pwuser166331039855]

now it must be running on water as coolant and must be reducing it every after some days. right ?

in the morning, remove the radiator cap and start the engine and notice the coolant behavior in the radiator.

if the gasket damage is high, the bubbles start appearing quickly.
and sometimes it takes a while for them to appear.