Yes, oils have changed greatly over the years. I have a reprint of a 1938 Ford car manual that advises for cold weather operation, 1 quart of oil should be drained from the engine and replaced with 1 quart of gasoline. When the engine was started on this mixture, you were to watch the oil level and when the gasoline boiled or burned off, add a quart of oil. This was a time when only straight viscosity grades were available - 10, 20 or 30 weight oils.
volvolugnut
Oil viscosity and the owners' manual
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volvolugnut
- Posts: 6502
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- Year and Model: 2001 V70
- Location: Oklahoma USA
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The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
John Deere 214 lawn tractor about 1977 model
And others.
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
John Deere 214 lawn tractor about 1977 model
And others.
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