SENTRON(TM) LD 5000 Approved for Use in GE Jenbacher Type 2, 3, and 6 Engines

Mississauga, Ontario Canada - After accumulating more than 10,000 hours of service in each of two field trials, Petro-Canada Lubricants today announced that its SENTRON LD 5000 premium natural gas engine oil has been approved by GE Jenbacher for use in all of their Type 6 engines fuelled by natural gas. The field trials were conducted in GE Jenbacher J620 and J420 engines up to 20 bar used in CHP (Combined Heat and Power) applications, including a chemical plant in Germany and a textile manufacturing plant in Spain.

"Our continued cooperation with GE Jenbacher over the past several years, involving several robust field trials, has subsequently led to the approval of SENTRON LD 5000," says Nick Moat, Research Associate, Petro-Canada Lubricants. "They are one of the industry's leading OEMs and manufacture some of the finest engines in the world. We are thrilled to add this prestigious approval to our OEM list, and look forward to offering SENTRON LD 5000 to our customers with GE Jenbacher Type 6 engines."

During field trials, SENTRON LD 5000 displayed several performance characteristics and benefits, including extended drain capability without detriment to engine cleanliness, particularly regarding ring zone deposits, due to its very robust detergency capabilities.

"Especially exciting is that trials, and actual experience, have demonstrated oil drain intervals extending beyond 10,000 hours. This capability is very important when attempting to increase the equipment's maintenance interval without impacting durability and performance," says Allan Murray, Category Portfolio Manager, Commercial Industrial Engines, Petro-Canada Lubricants. "In fact," added Moat, "over 16,000 hours have been reported based on field experience when engine preparation and set up are optimized."

SENTRON LD 5000 is approved by several OEMs, including GE Jenbacher, MAN, MTU, Waukesha, Guascor and MDE, and has been verified by Caterpillar. High-performance additives are incorporated in the oil for the extra performance required for severe service applications, including high output, turbocharged engines that encounter high exhaust gas temperatures. With its extremely robust base retention and acid resistance, it is also expected to meet the more severe operational needs of CHP, light biogas, sewage gas, coal bed methane and halogen-free landfill gas operations.

About the GE Jenbacher Type 6 Engine

Continuously refined based on extensive experience, Type 6 engines are
reliable, advanced products serving the 1.8 to 3 MW power range. Its 1,500 rpm engine speed results in a high power density and low installation costs. The Type 6 pre-combustion chamber achieves maximum efficiency with low emissions. Proven design and optimized components enable a service life of 60,000 operating hours before the first major overhaul.

About Petro-Canada, and SENTRON LD 5000

Petro-Canada - a Suncor Energy Business - blends and packages more than 350 different lubricants, specialty fluids and greases that are exported to more than 60 countries on six continents. Products are manufactured from 99.9% pure base oils - among the purest in the world. As the world's largest producer of white oils and the leading supplier of factory fill automatic transmission fluids, Petro-Canada is focused
on going beyond today's standards and providing tangible savings solutions. With more than 30 years of experience in manufacturing and blending Groups II and III base oils, the company delivers a diverse line of premium lubricants that meet and exceed an increasing range of international specifications.

SENTRON LD 5000 provides revolutionary performance for up to 200% longer drain intervals and exceptional overall engine protection. It features outstanding anti-wear / anti-scuff protection to reduce wear of piston rings, cylinder liners and bearings. Superior valve recession control is achieved by appropriately balanced sulphated ash. SENTRON LD 5000 has extremely low oil volatility, which improves work environments through the reduction of oil odour and minimized oil consumption and related exhaust emissions.

For more information on products and services, please call 1-800-268-5850 (English Canada), 1-800-576-1686 (French Canada), 1-888-284-4572 (United States), 44 2476 247294 (Europe), or visit and (TSE, SU NYSE: SU).

For more information contact:

Leslie Taschner/Julia Perreira

GCI on behalf of Petro Canada


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