One of the mysteries of the English language finally explained.
1An engine oil meeting the requirements of several standard grades.
- ‘‘Use multigrade oil in your engine because it reduces drag, service your car regularly, use a logbook to record your fuel purchases and establish lift clubs where possible’, she said.’
- ‘The viscosity grade of a multigrade oil is different at high and low temperatures due to additives known as viscosity modifiers.’
- ‘It's proven to provide better rust protection than standard monograde and multigrade oils when subjected to the industry-standard humidity cabinet test.’
- ‘For example, it is possible to decrease the amount of fuel consumed by modern cars by up to 5% simply by switching from a typical multigrade oil to a ‘friction-modified ‘lubricant with a lower viscosity.’’
- ‘In reality, monogrades do not do nearly as good a job as multigrades today.’
- ‘He walked across the garage forecourt carrying a big bottle of multigrade.’
2trademark A kind of photographic paper made with two emulsions of different sensitivities, from which prints with different levels of contrast can be made using colour filters.as modifier ‘Multigrade paper’
- ‘I bid on a set of multigrade filters for adjusting the contrast of your print and then, after finding only one working example at college, also bid on a focus finder.’
- ‘It has a dial-type timer, instead of one which displays the numbers like a digital clock, and it has a swing-out red filter from before the time of multigrade papers.’
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