Learn About Caltex Techron® Fuels | Frequently Asked Questions

Techron® is a special additive made available in all Caltex petrols, making them excellent at keeping vital engine parts clean, helping your car perform at its best. Unadditised fuel can leave harmful deposits in your car's engine. As these deposits accumulate over time, your car may begin to hesitate during acceleration, knock or lose power. Petrols with Techron® are unbeatable* at cleaning up and avoiding deposits. There's no better way for you to protect and maintain your engine's performance than by using Caltex with Techron®. 

*Chevron surveys the market and formulates Caltex with Techron® to have cleaning power at least as good as the best performing competitor within each octane grade that we sell.

Yes, and not just your car – but any vehicle you drive. This is because Techron®, a special additive in all Caltex petrol, cleans deposits from your engine and prevents future build-up.

No. While both are based on polyetheramine chemistry, each is optimised for its particular application. Petrols containing Techron® clean engine deposits left by low quality petrols and keep engines clean through regular use of a lower additive dose, while a bottle of Techron® Concentrate Plus added to your fuel tank provides a quicker clean-up of deposits left by lower-quality petrol, through a higher additive dose.

If you regularly use a high-quality petrol such as Caltex, you probably don't need Techron® Concentrate Plus. However, should you occasionally fill up with lower quality petrol, you may need Techron® Concentrate Plus to help clean up deposits that can build up over time. In addition, if you have an engine that is sensitive to deposit formation, or if your vehicle is regularly used under severe conditions, you may also benefit from using Techron® Concentrate Plus.

Knocking and pinging are generally caused by improper combustion in your engine. If the fuel-air mixture auto-ignites somewhere in the cylinder, the auto-ignition combustion wave can interact with the spark-initiated combustion wave, causing the vibration you hear as knock or ping. An increase in engine load, temperature, compression, spark-advance, air-fuel ratio and combustion chamber deposits all contribute to the tendency for an engine to knock. The use of higher-octane fuel reduces this tendency. Deposits in the combustion chamber can increase your engine's appetite for octane by increasing the compression ratio. Fortunately, Caltex with Techron® can help to minimise any contribution to potentially harmful combustion chamber deposits.