Does Using the Wrong Engine Oil Affect the Fuel Economy of My Suzuki Cultus?

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Does Using the Wrong Engine Oil Affect the Fuel Economy of My Suzuki Cultus?

I recently switched the engine oil in my Suzuki Cultus, and I’ve noticed a decline in fuel efficiency since then. Could using the wrong engine oil o r the wrong viscosity be responsible for this? What is the recommended type of engine oil for the best fuel economy, and how often should it be changed?

Gari Specialist asked on 21 Mar 2025 14:12:19 pm

1 Answer

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Gari Master - on 21 Mar 2025 14:15:51 pm

Yes, using the wrong type of engine oil o r oil with an incorrect viscosity can negatively impact the fuel economy of your Suzuki Cultus. Oil that is too thick can cause more friction within the engine, while oil that is too thin might not provide sufficient lubrication, both leading to reduced efficiency and increased fuel consumption.

Viscosity: Engine oil with the wrong viscosity too thick o r too thin can cause additional engine friction, making it harder for the engine to operate efficiently.
Oil Type: Always use the type of oil recommended in the owner’s manual. If the oil isn’t suitable for the conditions in which you drive, it can lead to reduced engine performance and increased fuel consumption.
Solution:

Use Recommended Oil: Refer to the Suzuki Cultus owner’s manual for the recommended engine oil type and viscosity. Typically, 5W-30 o r 10W-40 oils are suitable for the Suzuki Cultus, but this can vary depending on the engine and climate.
Regular Oil Changes: Make sure to change the engine oil at regular intervals usually every 5,000-7,500 kilometers, as dirty o r old oil can also contribute to poor fuel efficiency.