QQ: Can I use vaseline in place of dielectric grease on the injector o-rings?
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#10
You shouldn't use petroleum based products as a lube.....
They can have the ability to break down rubber. Injector o-rings tend to be made of Nitrile. One of the better lubes to use is KY Jelly or something similar. They are water based, slippery and won't eat your rubber.