I need some expert advice regarding which oil is best to use for my car- it's not a simple answer btw so let me start with all the details:
Car: Citroen ds3 1.6 thp power output 155bhp: Manufacturer recommends a 0w30 total oil c2 low saps oil.
But...
I have added a few performance upgrades on my car (bigger turbo-bigger intercooler-2.5inch exhaust with racing cat) all internals though are stock. My car now delivers 233bhp. Mileage is low, 30.00km (around 22.000 miles). Also i live in a hot summer country, my driving style is daily normal driving except for about once a month that i will drive it hard on a B road or in a bit of high speed 6th gear in the highway. I am not doing any track days-motorsport
I have two different advices:
1. From two oil company sales people, both told me that i have to stick with the manufacturer's recommendations since i haven't change the engine 's pistons or valves and also my car has relatively low mileage. If i change to a higher grade oil such as a 5w40 it will only cause damage to my engine in the long term (carbon buildingup on valves..reduced power etc. ) and also i should avoid any motorsport oil as it's good for racing but not good for everyday driving.
2. The second opinion comes from a few mechanics i talked to for advice. They suggested me exactly the opposite. Since my car now is running an increased power there will be more heat created and more strain in the engine internals so I should use a 5w40 oil for extra protection and also I can consider a motorsport oil because they have added additives such as esters / nano technology that will give extra protection to my engine.
As my knowledge for oils is very limited and also with a bit of research on the internet I didn't cameup with a clear answer as to what oil I should use
I hope there are some people with good knowledge about oils that can help me with my issue to decide which oil should i use now?
Car: Citroen ds3 1.6 thp power output 155bhp: Manufacturer recommends a 0w30 total oil c2 low saps oil.
But...
I have added a few performance upgrades on my car (bigger turbo-bigger intercooler-2.5inch exhaust with racing cat) all internals though are stock. My car now delivers 233bhp. Mileage is low, 30.00km (around 22.000 miles). Also i live in a hot summer country, my driving style is daily normal driving except for about once a month that i will drive it hard on a B road or in a bit of high speed 6th gear in the highway. I am not doing any track days-motorsport
I have two different advices:
1. From two oil company sales people, both told me that i have to stick with the manufacturer's recommendations since i haven't change the engine 's pistons or valves and also my car has relatively low mileage. If i change to a higher grade oil such as a 5w40 it will only cause damage to my engine in the long term (carbon buildingup on valves..reduced power etc. ) and also i should avoid any motorsport oil as it's good for racing but not good for everyday driving.
2. The second opinion comes from a few mechanics i talked to for advice. They suggested me exactly the opposite. Since my car now is running an increased power there will be more heat created and more strain in the engine internals so I should use a 5w40 oil for extra protection and also I can consider a motorsport oil because they have added additives such as esters / nano technology that will give extra protection to my engine.
As my knowledge for oils is very limited and also with a bit of research on the internet I didn't cameup with a clear answer as to what oil I should use
I hope there are some people with good knowledge about oils that can help me with my issue to decide which oil should i use now?