THE REAL REASON
TIMELY WARNING FOR THE PROTECTION OF MOTORiSTS. PETROLS MISREPRESENTED Long established standard_ secondgrade petrols are flattered by comparison with so-called "cheap" firstgrade petrols. Laboratory tests reported to us reveal that certajn "cheap" petrols,. represented as firstgrade, contain from 47 per cent. to 50 per cent. more sulphur than an average established second-grade spirit. Sulphur combines chemically with moisture in the crankcase to form sulphuric acid, which immediately commences to corrode all metal with' which" it comes in contact. The gum content of these alleged "first-grades" is 153 per cent. to 166 per cent. greater than that of a standard second grade, and motorists who are experiencing sticky valves, sludging or gummed -oil' channels will now lcnow where to place the blame. Whilst the colour and odour of these misrepresented fuels present no distingi^ishing characteristic, the average motorist can easily recognise their inferiority by a "knock" when the spark is at the normal setting for running on a standard secondgrade fuel. Just how good a genuine first-grade fuel really is will now be appreciated by all motorists ,who are determined to protect their investment in personal trarsportation.
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https://paperspast.natlib.govt.nz/newspapers/RMPOST19321206.2.3.4
Bibliographic details
Rotorua Morning Post, Volume 2, Issue 398, 6 December 1932, Page 2
Word Count
189THE REAL REASON Rotorua Morning Post, Volume 2, Issue 398, 6 December 1932, Page 2
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