oil comparison

Hello, I recently rebuilt my 2005 corvette’s LS2. I’m about ready to start it but I want to be 100% certain what I’m giving my car will be the best for it. I have already put 6 quarts of Joe Gibbs (Driven) 5w-30 break in oil and after the initial start and vacuum pulls I was planning to put in 6...

Hello, I want to ask about motorcycle oils that confused me about the grade of it. The first one is Motul 7100 10W40 and second one is Ipone Katana 10W40. Both of them are Ester based oils and the price are pretty much the same only about 1-2 dollars difference. The country I'm living is...