Hey gentlemen, a question on break in oils..

[Chad Hilburn]

Hey guys,
So im about to break in a freshly rebuilt 383 magnum and ive got to buy some break in oil. I've done a few of these things over the years and usually I buy joe gibbs BR oil, but i'm seeing something I don't recall. I feel like I used to buy BR30 straight 30wt break in oil but i see alot of 5w-30 multi viscosity break in oils being promoted. What have you guys used, and is it straight weight or multi??

 

[PRHeads]

I use the “BR”, which is 15/50.

 

[R413]

I used the Gibbs 10/30 break in oil many times.

 

[70ChargerRT]

Im using BR 40 to break in mine right now.

 

[gkent]

Are you breaking in it outdoors in winter ??? If not then straight 30 weight is fine. The number before the "W" pertains to the viscosity at colder temps - which it would appear very few understand !!!

 

[Chad Hilburn]

Are you breaking in it outdoors in winter ??? If not then straight 30 weight is fine. The number before the "W" pertains to the viscosity at colder temps - which it would appear very few understand !!!

I get that its meant for cooler weather and so forth. Naw im in so cal so not super cold. Ive typically used straight weight in the past

 

[josephqatarcarguy]

Hey guys,
So im about to break in a freshly rebuilt 383 magnum and ive got to buy some break in oil. I've done a few of these things over the years and usually I buy joe gibbs BR oil, but i'm seeing something I don't recall. I feel like I used to buy BR30 straight 30wt break in oil but i see alot of 5w-30 multi viscosity break in oils being promoted. What have you guys used, and is it straight weight or multi??

Lucas 20w-50 break-in oil!!!