kllrvet

iTrader: (4)

I have just completed rebuilding and installed the LS7 in my corvette. I am curious about what oil to use for break in. It's my understading that Mobil 1 is the factory fill, so can I use it for break in?

If not, why not? Even mobil has info on their website that using conventional oil for a new motor is a myth. I do understand that their opinion might be biased.

Has anyone used synthetic for breaking in a new motor, or do you just stick to the tried and true convetional becuase it works?

I'm betting this topic has been beat to death, but I couldn't find much with a search.

Thanks in advance

Tony

Sales2@Texas-speed

iTrader: (5)

We use Joe Gibbs Break-in Oil, and supply 12 quarts of it with every short and long-block we ship!

Phil99vette

iTrader: (11)

We've have been using Shell Rotella Diesel oil and GM EOS supplement. So far so good.

Sales2@Texas-speed

iTrader: (5)

We used to do the same, and then Shell cut down the levels of ZDDP in their oil, and GM raised the price of the EOS....so Joe Gibbs made good sense/cents. We always had success with the EOS though!

kllrvet

iTrader: (4)

Why do you use these oils instead of mobil 1? Have you ever tried break in with mobil 1

Tony

Phil99vette

iTrader: (11)

I know what your saying, the last time they said that they were going to cut it off the market maybe 3-4 years ago, I got a case for.... free. So I am still working on using all that. For some reason did Jason call me in the last week or 2?

Sales2@Texas-speed

iTrader: (5)

That I do not know! I will ask him next time he comes through though!

Gordon0652

iTrader: (4)

How often do you change the oil during break in?
"12 quarts" so thats about two oil changes...

Phil99vette

iTrader: (11)

Generally when I fire it up for the first time, I warm up the motor and drop the fluid and filter.

Sales2@Texas-speed

iTrader: (5)

Agreed, the first 6 quarts is just for a heat cycle or two, then gets changed and the filter cut open and inspected. The 2nd, assuming the filter looks good, can go a few hundred miles on average.

Gordon0652

iTrader: (4)

Thank You!