Chevron Global Lubricants expects to have more than 800 UK franchised dealerships in its Havoline Performance Plus Programme (HPPP) by the end of the year.

The HPPP trains dealers to encourage owners to have their car’s fuel system cleaned every six months. Chevron claims rivals cannot match its Texaco fuel technology, and those in the programme include the Arnold Clark group, most Nissan outlets and members of the Ford-based Retail Automotive Alliance.

The HPPP grew from launch to 200 dealers in 2005, and Chevron says 500 dealers were signed up by the end of last year.

John Jackson, Chevron’s UK key accounts and fuel treatments manager, says: “Service schedules continue to be extended, and oil is often not replaced for 20,000 miles. This means dealers may not see customers for a year or more.

“We offer training to dealers to assist them to build trust with car owners.

“Owners need to believe that cleaning an engine properly improves performance and fuel economy.”

Chevron has teamed up with Delphi, a leading manufacturer of diesel fuel injection systems, to develop a new additive called Delphi Diesel Plus, which is co-branded with Texaco.

Jackson says: “The quality of filling station petrol and diesel varies, and car owners tend to get what they pay for. We have to explain that engine tolerances are far finer than 10 or 20 years ago.” Chevron is seeking to raise the profile of the Havoline brand, though the Texaco logo is still used on retail containers. Carmakers realize not all cars need the same sort of oil, and dealers should explain this to customers, says Jackson.