PACCAR Awards Extended Life Coolant Business To Chevron Delo; Chevron Delo Extended Life Coolant To Be Factory Fill For PACCAR Inc. Trucks Assembled in North America

TAMPA, Fla.--Feb. 1, 20055, 2005--ChevronTexaco Products Company (ChevronTexaco), a leading provider of heavy-duty engine oils, lubricants and coolants, today announced that its Chevron Delo(R) Extended Life Coolant has been awarded the factory fill business for all Kenworth and Peterbilt trucks built by PACCAR in North America. ChevronTexaco's patented extended life coolant formula is now the standard factory fill or a fill option at all major truck assemblers in North America.

Chevron Delo(R) 400 Multigrade SAE 15W-40 has been the factory fill engine oil for PACCAR since 1989. Delo Extended Life Coolant, along with the rest of the Delo product family, is available at all Kenworth and Peterbilt dealers in North America.

Benefits of Delo(TM) Extended Life Coolant:

-- 600,000 miles on-road use with Delo Extender at 300,000 miles

-- Improved service life for water pumps and liners

-- Reduced maintenance and equipment costs

-- Effective, long-term corrosion protection for aluminum, brass, cast iron, steel, solder, and copper

-- Improved heat transfer compared with conventional coolant

-- No need for supplemental coolant additives (SCA)

The Delo Product Family

The Chevron Delo product family includes technically advanced lubricants and coolants that provide superior protection, performance and bottom-line value for on- and off-road diesel powered equipment. Delo products are found in all major industries from commercial transportation to mining, construction, agriculture and power generation.

All Chevron Delo products are covered under the Delo Warranty Plus program, which provides bumper-to-bumper protection against any lubricant and coolant related failures.

The Delo family contains a full line of engine oils, including Delo(R) 400 Multigrade (SAE 15W-40 & SAE 10W-30), Delo(R) 400 Synthetic (SAE 0W-30 & 5W-40), Delo(R) 400 Monogrades (SAE 20, 30, 40, 50) and Delo 100 (SAE 20, 30, 40, 50). Rounding out the complete line of Delo products are Delo(R) Extended Life Coolant, Delo(R) Greases EP (NLGI 00, 0, 1, 2), Delo(R) Synthetic Grease SF, Delo(R) Trans Fluid ESI(R) and Delo(R) Gear Lubricants ESI(R) (SAE 80W-90 and 85W-140).

More information on Delo products can be found at: www.chevrondelo.com

About PACCAR Inc.

PACCAR is a global technology leader in the design, manufacture and customer support of high-quality light-, medium- and heavy-duty trucks under the Kenworth, Peterbilt, DAF and Foden nameplates. It also provides financial services and distributes truck parts related to its principal business. In addition, the Bellevue, Washington-based company manufactures industrial winches under the Braden, Gearmatic and Carco nameplates.

PACCAR shares are traded on the Nasdaq Stock Market, symbol PCAR, and its homepage can be found at www.paccar.com.

About ChevronTexaco Products Company

ChevronTexaco Products Company is a division of a wholly owned subsidiary of the ChevronTexaco Corporation .

A full line of lubrication and coolant products are marketed thorough this organization under the Chevron, Texaco and Caltex brand names. Select brands include Havoline(R), Delo(R), Ursa(R), Revtex(R) and Texaco Xpress Lube(R). ChevronTexaco Products Company owns patented technology in advanced lubricants products and new generation base oil technology, as well as coolants.

Headquartered in San Ramon, CA, ChevronTexaco Products Company, together with its ChevronTexaco affiliates worldwide, is ranked among the top three global marketers of lubricants, and is active in more than 180 countries through 4,000 employees.

For more information go to: www.chevrontexaco.com