The difference between Red ATF oils
ATF Type A was one of the first generations of ATF, produced for automatic transmissions of the 1950's. There are very few standards for it, and many of the products have a viscosity index of 50, verses an index of 190 for a good ATF to hold its viscosity at higher temperatures
El aceite Tipo A es muy Viscoso en el frío y muy delgado en el calor.
This graph is for typical products of these advertised viscosities.
To calculate the viscosity curve for any specific oils, using their data sheets, click here.
To see more detail at the different temperatures, click the appropriate temperature range.
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Between 0℃ and 30℃
Between 0℃ and 30℃
Here we see the viscosity curve of the three basic products, without all the detail
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Between 20℃ yand 50℃
Between 25℃ and 30℃ the viscosity curves of Type A and Dexron cross. After that, the Type A does not have enough viscosity to do its job.
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Between 50℃ and 80℃
Between 50℃ and 80℃ the Type A does not have enough viscosity to protect the hydraulic pumps and function as a lubricant.
