Originally Posted By: Danh
Originally Posted By: Merkava_4
NOACK going from 7 to 11 means it evaporates easier, correct ?
Right. Noack is a % representing the reduction in weight via evaportation of a sample under high heat for a specified time period.
Here is a qoute from the Pennzoil Q&A on this site about PPU : " GTL in particular – provide very good volatility. “I’m talking about the hot spots in the engine where it can reach 400 to 600 degrees Fahrenheit,” he explained. “That’s enough to start to boil away or evaporate some of the lubricant molecules, where they go out the exhaust system. "
Oops, Pennzoil lied to us. The old data sheets which showed Pennz Ultra getting 7% volatility are gone, and we have the magical GTL PPU with a mediocre 11%.
Originally Posted By: Merkava_4
NOACK going from 7 to 11 means it evaporates easier, correct ?
Right. Noack is a % representing the reduction in weight via evaportation of a sample under high heat for a specified time period.
Here is a qoute from the Pennzoil Q&A on this site about PPU : " GTL in particular – provide very good volatility. “I’m talking about the hot spots in the engine where it can reach 400 to 600 degrees Fahrenheit,” he explained. “That’s enough to start to boil away or evaporate some of the lubricant molecules, where they go out the exhaust system. "
Oops, Pennzoil lied to us. The old data sheets which showed Pennz Ultra getting 7% volatility are gone, and we have the magical GTL PPU with a mediocre 11%.
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