Heritage MTH is a premium mineral, non-detergent, monograde engine oil made from high-quality mineral base oils that includes anti-wear, anti-rust, and tackiness additives. They have been specifically designed for use in automobiles produced before 1920.

Application
Heritage MTH is intended for use in various pre-World War I vehicles equipped with very crude oiling systems such as drip feed lubricator systems, wick feed, and hand driven pumps. These require engine oil that will flow easily when cold but give adequate protection when hot.

The average oil change interval for the Heritage MTH should be no more than 500 miles / 800 km or once a year, whichever comes first.

Heritage MTH is an SAE 50 medium to heavy viscosity engine oil designed to fulfil the needs of medium to big veteran Edwardian cars with 4, 6, and 8 cylinders, as well as 500cc or larger motorcycles made before 1920.

Heritage MTH is intended for use in big capacity engined vehicles equipped with trough or early types of pressure-fed systems, which require a higher grade of oil than Heritage LTM. Also recommended for early versions of bigger capacity (above 6hp) stationary engines that may be subjected to continuous unloaded operation, or where a thinner grade oil would not give adequate protection at high ambient temperatures. It may also be used in various types of early agricultural equipment powered by petrol, kerosene (paraffin), or diesel.

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