Not really, depending on what you call "vintage." The antiwear additive ZDDP became an industry standard in 1942 and was doubled by 1952. 1952 oil had more ZDDP then most on-the-road motor oils sold in 2009 and 2010. Some are using boron as a replacement to meet emissions regs.
Oil companies don't put their focus on formulating oils for flat tappet engines. For those that want extra protection, it's not very difficult to buy off-road oils with more ZDDP protection (like the older on-the-road oils had).
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Today's Featured Article - Piston Ring Removal and Replacement - by Chris Pratt. Piston Ring Removal and Replacement - Replacing rings is a fairly easy process to stretch the engines usability between major rebuilds and cut down on that blue smoke and high oil consumption. Frequently, replacing only the rings is not advisable because by the time you do the teardown and measurement of the components, the pistons are often beyond the manufacturers specification or something else you find will signify the need for a major rebu
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