My diesel car engine oil was leaking from bottom which I realized very late. I changed engine oil to shell semi synthetic. After that I asked mechanic to fix oil sump screw properly. I did not change oil filter as it was not available that time. Mechanic said you can always change later and will not be a problem.
After that I was noticing loss of power in all gear shifting. Prior to this oil change car was making sound, vibrations were more. This diesel Grande Punto has 60k miles on it. Engine oil is still leaking drop by drop, car servicing is already due, I am wondering if products like xado or ceratec will help? may be car engine is worned out a bit. This car is 3 year old and was bought brand new.
When car was new for 2 years I did proper servicing but on 3rd year I used shell full synthetic engine oil from outside during servicing.
The car engine never ceased even though oil sump was more than half empty.
I am also planning to change engine oil to Liqui Moly semi/full not decided yet which one.
I am trying to get suggestions before I go to service center.
Do you guys have any experience on below products?
Thanks in Advance!
Before noticing this leak, last time during servicing I got drain plug (screw and circular surrounding if I am calling it correct) replaced. After that no oil leak noticed for 30 mins but later I forgot about it thinking all is well and oil leak started again after car was driven.
I think it is the same thing which could have gone bad because that is the place it is leaking again, it is drop by drop but not so fast, may be one drop every two minutes probably.
I will check about gasket this time.
What do you think about oil types 5w-40 is better or 10w-40?
FIAT recommends semi synthetic.
Apart from this, do you think running car with very low engine oil could have damaged internal parts (this happened only once on 3 year)?