Good or bad?

Sir,

A question which has been in the back of my mind for some considerable time, has been kindled afresh by an advert in the April edition of Motor Sport.

The Instruction Manual of my Volkswagen emphatically states that no additives should be mixed with either engine or transmission oil, and yet, according to the “Molyslip” advert, we stand to gain so much from doing just what the makers say we must not.

Now they cannot both be right, and I for one would greatly appreciate the truth of the matter.

John Bastable.
Gillingham.