Hi, I have a new swift diesel zdi 2014 done 2500km, I got oil changed to shell helix hx7 10w40. But now I came to know recomende oil grade is 5w40 so should I continue with the oil or change to recomended grade oil immediately pls advice, thank you.
The abilities of an engine oil can be judged on the basis of its grade and additives used in it. The Shell Helix HX7 is a high performance engine oil and recommended for the Swift, but as you said the recommended grade is 5W40. However, we would like to tell you that the 10W40 will also not harm your car's engine. Both the engine oils are multi grade semi engine oils and basic difference between both the oils is that at lower temprature or normal temprature the 5W40 has lower viscocity and the 10W40 has a higher viscocity, however at a higher temprature both the engine oils has the same viscocity index of 40, which 10W40 is more thicker than the 5W40 on normal temprature.
The advantage with the 5W40 is that it helps the engine to start quickly in extermly cold weathers (where temprature is lower than -5 degree), apart from that both the engine oils shares the same chracterstics. As in India, the temprature doesn't fall that much, you are using the same engine oil more or less.
You can read more about engine oils here- http://www.cardekho.com/lubricant-guide/choosing-the-correct-engine-oil-for-your-car.htm
Hey, thanks for sharing this query with us. This is the biggest dilemma that people face now a days. Deciding between petrol and diesel is a tough choice but it can be made really easy if you know about the usage. We will surely help you in clearing this confusion.
The main deciding factor here is the usage. If you drive your vehicle more than 50 kms a day then a diesel vehicle is recommended because of the better fuel efficiency and low cost of fuel. Rest, a petrol vehicle would be better to pick.
Petrol vehicles provides a peppier performance whereas the diesel one, comes with high power. The diesel one are a bit rough to drive because of the engine sound and on the other hand, the petrol one are silent in performance.
The next big factor is maintenance, it is a well known fact that diesel engines have more maintenance cost and also, the initial investment in diesel vehicles are more than compared to the petrol one.
To have more understanding on it and make a clear decision, we recommend that you go through our article -"Which Car to Buy - Petrol or Diesel? We Have the Answer"
Buying a new car is a big decision as you are about to invest a big amount into it. The biggest dilemma that people face now a days is which fuel option to pick; Petrol or Diesel.
Now, the decision is based mostly on your usage. If you drive your vehicle for around 1500 KMS or more in a month, then the diesel is the choice rest, Petrol is better to pick.
In order to help our customers to get out from this dilemma, we have advisory stories available on our website. Please click here to check the same. We hope that it will help you. Rest, you can get in touch with us on our toll free number i.e. 1800-200-3000 Mon - Fri (10 AM - 7 PM)
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