Car Craft mentions Shell Rotella-T in an answer to a question in their "What's Your Problem" tech section, Sept. '06 issue. The question is titled "Valve Clatter", in relation to valve train noise. I n the answer, Car Crafts Jeff Smith mentions the lack of zinc and phosphorous in current oils, pointing out that a bottle o anti-wear additive is essential for cam break-in. Further, he says: "But the problem doesn't stop there. Many cam companies now suggest using engine oils with higher levels of zinc and phosphorous for engines equipped with flat-tappet lifters. Shell Rotella T is diesel- engine oil that offers these increased antiwear additives and is safe to use in gasoline engines. Another alternatives is using one of the high-performance oils from Quaker State, such as the Q racing oils , which contain higher levels of antiwear additives and can be used safely in street engines. The oils cost a little more, but they may prevent a flat-lobe problem down the road."

I just thought that it was interesting, in light of our discussions of oil, zinc, and phosphorous some time ago.

On digest mode, so I'm a little slow...

Kevin Wright [EMAIL PROTECTED] Dallas/Ft. Worth, TX http:// www.wankel.net/~krwright/cars/olds/70Olds.html

'71 Cutlass S for sale, less engine and trans: http://www.wankel.net/ ~krwright/cars/olds/71_cutlass.html

Snoopy: 1970 Oldsmobile Cutlass S Sports Coupe - It wants to be a W-31! And have EFI, 4-wheel discs, a 6-speed, a turbo or two... :) ...and a '71 Holiday Coupe less engine/transmission for sale - it'll be parts if someone doesn't buy it!

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