What is the best engine oil for my Vauxhall Insignia?

I have been using regular 5W-30 oil for my Vauxhall Insignia, but I've been noticing some engine knocking. What engine oil would you recommend for better performance and protection?

It is important to always follow the manufacturer's recommendations for engine oil. According to Vauxhall, the best engine oil for the Insignia is their own Dexos2 5W-30 synthetic blend. It offers better protection and performance for your engine.

You should also consider the age and mileage of your car when choosing engine oil. If your Insignia is older and has higher mileage, a thicker oil like 10W-40 may provide more protection for your engine, but it may also decrease fuel efficiency. Consult with a mechanic for a personalized recommendation.

In addition to choosing the right oil, make sure to change it regularly to maintain your engine's health. It is also important to check your oil level frequently and top it off if necessary. Your engine will thank you for it in the long run.