1994-02-01

New Diesel Low Temperature Operability Test - Agelfi Filtration Test 940081

ABSTRACT

Low temperature operability of winter grade fuels is a major concern for users, car manufacturers and refiners.

The Cold Filter Plugging Point (CFPP) has been widely used as an indication of the low temperature operability.

With the new engine technologies and the new trends to improve the cold flow properties of diesel fuels, it was shown that the CFPP test is no longer a reliable predictor of vehicle operability, hence, requiring a new test.

The AGELFI test has been developed with conditions very close to those encountered in the field (nature and size of the filter, pressure…). The equipment is composed of four measuring posts totally independant to each other. It is cooled by a cryostat and completly computer monitored.

Extensive tests on a wide range of European Diesel fuels show a very good correlation with the operability values measured on cold chassis dynamometers, on different vehicles.

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