Hello everyone, I have read Inlinepro's instructions for break-in on there built engine packages. I plan on using Amsoil 10w40 for my primary oil, but are you guys breaking your engines in with fully synthetic oil ? Thank you in advance.

 

I break mine in with Brad Penn break in oil.

 

Don't break in an engine with synthetic, way to slippery of an oil to use while piston rings are seating

 

Thank you for the response, is the car going to be at Honda day?

 

This is what we use, Either Valvoline VR1 20w50 with some 10w 30
or
http://www.amsoil.co...efront/brk.aspx

 

Brad Penn for sure

 

Thank you for all the responses.

 

what sort of break in time are you guys using, i just got done building a motor for my car and do i tune the car with the break in oil? and or how long do i leave it in there??

 

Every engine we build gets Brad Penn Break-In.

 

Anyone use Joe Gibbs break in oil?