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Hello everyone, I read somewhere a way build oil pressure in engine before engine starting to minimise cold start friction by disconnecting fuel pump relay and cranking the engine without starting it for few seconds, Is that really beneficial in cold weather start?? Thanks in advance.

Hello everyone, I want to use a premium synthetic oil (manufacturer claim)and I noticed from it's SDS (see attached) that it contains small percentage of esters and I don't see any PAO , Is it considered premium 100% synthetic and can I use it for racing ??

Hello, I have a question please, does ZDDP additive protects cylinder walls and main bearings as much as it protects the camshafts?? In another way, is the protecting film on cylinder walls is as thick as on the camshafts?? Because many articles talking about zddp mainly focus on camshafts and...

After how many miles does the anti wear additives (like zinc, phosphorus etc..) depletes from the oil (approx.) ?? does it deplete as fast as the other additives like detergent or dispersants ??

HELLO, Guys, what do you think about products that claim that they can "heal" scratched and scored cylinder walls and rebuilds worn engine metal like XADO 1 Stage Engine Revitalizant or TriboTEX ? I even read an article (link below) in the official website of NASA talking about this technology...

Hello, I have a question please, My car (Peugeot 307 1.6L) runs on LPG fuel mostly (starts on gasoline for a minute), What TBN and sulphated ash should my engine oil have to ensure it has enough anti wear additives and protect the valves at the same time? Please note that it's operating...