Engine Oil Problem and Best Oil for Old Mehran

[foji]

Hi All,

I have mehran 2004 model. I used to drive it on CNG mostly but few months back I decided to completely drive it on a Petrol. With excellent pick-up, I never noticed that my car si giving black smoke until one of my friend told me this. To my surprise the day I switched to petrol engine oil has been reduced substantially as this never happened on CNG. I converted the car on CNG afterwards noted oil mark and driven car for another 500kms, checked the engine oil gauge level and it was the same, did not reduce at all. What could be the issue, anyone with an expert advice?

Secondly, Please guide me what viscosity engine oil should I use and which brand?

Thanks,

[saboor73]

Black smoke means your car is running on rich fuel mixture get your carb tune from a good mechanic for mehran I used too pour PSO generator oil have lot of zddp come in 1l pack you would have to buy four packf

[foji]

what could be the problem with oil reduction on petrol and not on CNG??

[saboor73]

^^A bad breath pipe maybe

[foji]

What is breathe pipe man? I am naive. @ekdrifter could you help with this menace please?

[brownrose78]

Hi All,

I have mehran 2004 model. I used to drive it on CNG mostly but few months back I decided to completely drive it on a Petrol. With excellent pick-up, I never noticed that my car si giving black smoke until one of my friend told me this. To my surprise the day I switched to petrol engine oil has been reduced substantially as this never happened on CNG. I converted the car on CNG afterwards noted oil mark and driven car for another 500kms, checked the engine oil gauge level and it was the same, did not reduce at all. What could be the issue, anyone with an expert advice?

Secondly, Please guide me what viscosity engine oil should I use and which brand?

Thanks,

get your car full serviced & take your car for full tuning & then use only petrolmin ultra 7 20w-50 for ur mehran

[shazzy516]

kixx is best