Sulfur is is not a good lubricant. In fact, it's too caustic for most engine metals. Zinc, in the form of ZDDP is best for resisting cam spalling. Some of the 'high mileage' or 'vintage car' oils have ZDDP levels of 1100 or 1200ppm, and are good for flat tappet and roller tappet cams, where the spring pressure is significant.
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Today's Featured Article - Show Coverage: Argyle and Mt. Pleasant Labor Day Weekend Shows - by Cindy Ladage. The last fling before summer fades into fall and we get busy in the fields are the annual Labor Day tractor shows. Beginning on September 5th and running through the 7th, the Argyle Antique Gas and Engine Show is held at the Argyle State Park. Located in West Central Illinois, the pine forest was the setting for the opening of the 22nd show. This year we decided to try to sell a few tractor parts, literature and wrenches to offset my husband's buying sprees. Saturday
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