Re: Carbon Buildup and Stuck Valves
Yeah interesting about titanium being added to some oils! I have just been using a Rislone zddp additive along with Rotella 15-40 in my '72, Rotella with no additive in my '55 and I recently got a low miles engine for the '70. It was being run with Mobil 1 and a zddp additive so I plan on doing the same thing as it did it's first 30,000 on.
If it was already mentioned, ignore this comment, but from what I understand the primary reason for the EPA regs the feds implemented was that they claimed that the zinc damaged catalytic converters.
DAC
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Doug Crawford
Rapid City, SD
1970 GMC K5 Jimmy Mom drove 30 years
1972 GMC C2500 owned since 1979
1955 GMC 100 driver-project
2006 GMC Yukon Denali---wife's truck
Hope to have a '60 GMC Suburban again someday
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