bwalker
LIFETIME SPONSOR
- Jan 10, 2000
- 839
- 0
The idea that synthetics dont protect against corrosion as well as mineral oils is rooted in the fact that many syns are ester based. Esters and castor bases attract water as part of there nature. They are also not very stable in the pressance of water. However,wether or not a lubricant will protect against rust has as much to do with the additive package as the base oil. Formulations with high tbns values will generally protect against corrosion the best. That being said most oil mfgs in the US dont even list the tbn of there oils . I have only seen this done only in europe.
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