Quote Originally Posted by Itoldyouso
Y
Tell you "expert" friend that there is a reason many new cars (including Corvette) roll of the assembly line with sythetic and that it is the recommended oil throughout the car's life. Even in the Marine industry, where I work, many engine manufacturers, like Volvo, have a sticker on the valve cover telling you to use synthetic.
Don
with the corvette though remember its got 16 hours on the motor when it comes out of the factory so that they verify rings are seated bearings aren't gonna spin and dumbass customers dont destroy their new engine by racing the car the day they buy it

Quote Originally Posted by R Pope
I changed to synthetic in a rebuilt 360 at 3000 miles, and it leaked at both crank seals. Changed back to dino, and it slowed the leaks but didn't stop. That's the only bad experience I've had with it, but I don't use it any more, mainly because of the price.
yeah thats the one downer i've noticed with synthetic oil.... if it was gonna be a minor seep with dino oil.... is gonna be a gushing river with synthetic