Mobil 1 leaks more because it is more fluid.... One of the same reasons it works better. Fix your leaks.
Castrol is a hyped up brand with a cool name. Oh, and its expensive. Thats why many people like it. But these qualities don't make it a better oil.
Mobil was the first to market a synthetic oil way back in 1976. The others didn't come along until the early 1990's. And it is true that Porsche and Corvette recommend ONLY Mobil 1 by name.
I worked for a company that built 800+ horspower Late Model Dirt Track engines. Upon rebuilding several of our engines we found that Royal Purple synthetic oil didn't seem to offer the same protection as regular mineral oil in our race engines.
Use Mobil.
Castrol is a hyped up brand with a cool name. Oh, and its expensive. Thats why many people like it. But these qualities don't make it a better oil.
Mobil was the first to market a synthetic oil way back in 1976. The others didn't come along until the early 1990's. And it is true that Porsche and Corvette recommend ONLY Mobil 1 by name.
I worked for a company that built 800+ horspower Late Model Dirt Track engines. Upon rebuilding several of our engines we found that Royal Purple synthetic oil didn't seem to offer the same protection as regular mineral oil in our race engines.
Use Mobil.