ENGINE STOP LEAK
Fuel Additive
201ml - 300ml

ENGINE STOP LEAK – 1107b - 300ml

Bardahl Engine Stop Leak is a product that is added to the engine oil to stop or significantly
reduce oil leakage from non-sealing gaskets or rings. It is mixable with all engine oil and makes
synthetic and natural rubber gaskets supple again. It can also be used preventively to prevent
future oil leakage.

This product also contains components to remove precipitation on valves and piston rings to
ensure increased engine performance and reduced oil consumption. A widely accepted test to
measure the expansion of gaskets showed that Bardahl Engine Stop Leak causes the gaskets to
expand from 15% to 70% in one week without showing cracks or softening significantly.

The problem
Rubber gaskets, as they are used today in modern car engines, tend to shrink, dry out, and
lose their flexibility, resulting in loss of oil. The precipitation that settles on valves and piston
rings reduce the effect of lower compression and increased oil consumption.

Effects of using Bardahl Engine Stop Leak
 Makes both seals and gaskets made of synthetic and natural rubber supple again.
 Stops oil spills while driving
 Increases engine performance
 Loosens stuck piston rings
 Reduces oil consumption
 Can be mixed with all types of engine oils

Tests
During several tests, it could be shown that if Bardahl Engine Stop Leak is added to the engine
oil, the gaskets will expand by 15% to 70%, depending on the material. The test procedure
follows: the various gasket materials are immersed in first-class engine oil. The material will then
remain in this oil for 168 hours at a temperature of 150°C (300°F). After that, it is examined
whether the fabric has changed. Then the test procedure is repeated, but with the addition of
Bardahl Engine Stop Leak.

The combination of cleaning, dispersion, and precipitation-dissolving components ensures that
stuck piston rings come loose again, valves become clean again, and the noise of valves is
reduced; the precipitations thus dissolved are then kept floating. This operation ensures that the
piston rings and valves seal better again, reducing oil consumption.