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A N opportunity to test the effectiveness of Bardahl oil additive

15th March 1957, Page 48
15th March 1957
Page 48
Page 48, 15th March 1957 — A N opportunity to test the effectiveness of Bardahl oil additive
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Keywords : Motor Oils, Bardahl

was afforded last week on a section of the L.C.C. Crystal Palace racing circuit. The tests were conducted over seven laps each, representing eight miles of undulating roads. The vehicle used was an unladen Bedford articulated outfit, fitted with a Perkins R6 engine having RPM Delo 20 oil in it, and operated by C. Shaw Lovell and Sons, Ltd., Greenwich, S.E.I0.

Two tests of seven laps were conducted to check acceleration and fuel consumption, the first with the 'vehicle as received, and the second with 10 per cent. Bardahl added to the, engine oil and 20 per cent. Bardahl added to the gearbox and rear axle. Procedures used for both sets of tests were identical, consisting of top-gear acceleratipn from 20 to 40 m.p.h. on the second and fifth laps, and standingstart acceleration from 0-40 m.p.h. on the third and fourth laps. Fuel consumption in each case was checked by means of a test tank and graduated measuring jar.

After adding Bardahf the acceleration figures up to 11 14 40 m.p.h. in top gear• on full throttle improved slightly,obut not sufficiently to be conclusive, Standing-start acceleration showed no change up to 30 m.p.h., there again being a slight improvement up to 40 m.p.h. A possible reason for the closeness of the results before and after adding Bardahl may have been the unladen condition of the vehicle.

A check on the fuel consumption after the second test run showed an improvement of approximately 33 per cent., but the vehicle was driven slightly less hard on the last lap of the second test. There are other claims made for Bardahl which can be verified only over a period of use, and in view of the nature of these it is possible that the acceleration of the vehicle tested would have shown a more marked difference if it had been working hard under load. The sole distributors of Bardahl oil additive foirGreat Britain are Bardahl Products, Ltd., 39 Craven Road, London, W./.

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People: Bardahl
Locations: London

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