Caltex today announced the results of a borescope test conducted in October of this year, achieving an average of 9.7 out of 10 score rating in Asia and 9.8 out of 10 in the Philippines on the cleanliness of engine intake valves when Caltex with Techron®, now with Clean & Glide Technology™ is used regularly.

Caltex’s borescope test was conducted in four Asian markets (Philippines, Hong Kong, Cambodia and Thailand) where they inspected 694 valves from 94 cars. The test utilized a Karl Storz borescope to examine the interior of a vehicle’s fuel system, comparing against the industry standard Co-operative Research Council (CRC) Intake Valve Deposit (IVD) rating system, where 10 denotes perfectly clean. A clean engine is important as when there is dirt buildup, the mixture of air and fuel is disrupted; impacting performance, power, acceleration, fuel economy and emissions.

Country Chairman and General Manager Louie Zhang, and Chevron Asia Product Engineering Manager Greg Engeler_

The showcase event in Makati City on December 13 was attended by car club members and enthusiasts. Mr. Greg Engeler, Chevron’s Product Engineering Manager for Asia Pacific, shared the findings of the borescope test.

The recent borescope test once again helps demonstrate to local motorists that not all fuels are created equal. Since our last test in 2013, Caltex fuels continue to work at keeping parts clean, thereby contributing to five performance benefits – maximized power, better fuel economy, lower emissions, a smoother drive, and reliable performance,” shares Engeler. “This is also the first time the new Caltex with Techron® formulation has been tested under the local market – with local fuels, under local climatic, driving, and traffic conditions. We are delighted that the latest Clean and Glide technology is proven to deliver unbeatable cleaning power to help our customers’ cars perform at their best.

Worst valve Representative valve (non-Caltex users) Representative valve (Caltex users)
Distance travelled:

49,000 km

5.0 out of 10 rating

Distance travelled:

44,000 km

9.2 out of 10 rating

Distance travelled:

120,000 km

9.9 out of 10 rating

Vehicles that used Caltex with Techron® achieved an average score of 9.7 out of 10 across all four Asian markets, surpassing the average 8.9 score of vehicles using lower quality fuel. In comparison, some vehicles using lower quality fuels recorded valve readings of as low as 5.0, 5.0, 6.5, and 8.5 for Cambodia, Philippines, Thailand and Hong Kong respectively. Vehicles selected represent a cross-section of the market fleet to reveal an unbiased and true state of local passenger cars.

“We are extremely proud of the borescope test results as these provide concrete evidence of the consistent performance of Caltex with Techron. Achieving such a high score in valve cleanliness reflects our commitment to providing only the best-quality fuel products. We are thrilled to be sharing this news with our media and car club friends,” said CPI country chairman Louie Zhang.

The borescope test demonstrates Caltex’s commitment to cleaner engines, while staying true to the evolving nature of Techron® in anticipation of future engine technology and local market needs. All grades of Caltex gasoline contain Techron®, a fuel additive package backed by over 30 years of research and development, which has a polyetheramine component designed to clean up fuel system deposits and prevent them from reforming. Filipinos can head down to any Caltex service station to experience the benefits Caltex fuels with Techron®.

Achieve the same cleaning power with TECHRON Concentrate Plus.

Just add 1 bottle in 1 full tank, and feel the cleaning power in a few weeks.

For improved fuel efficiency and additional torque, add Techron Concentrate Plus every oil change. Maximum of three cycles only.

For both gas and diesel engines.


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Caltex™, the retail brand of Chevron Philippines Inc., offers high quality products and services. There are close to 600 service stations strategically scattered throughout the Philippine archipelago and employees working in several areas of business such as Marketing, Lubricants, and Terminal operations. The Chevron products that are available in the Philippines include Caltex with Techron® fuel and Caltex Diesel with Techron®D, Havoline®, and Delo® oils. More information on Chevron Philippines Inc. is available at


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