break in oil

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break in oil

Post  GT300TD on March 10th 2016, 1:38 pm


Ordered Lucas break in oil and they sent Lucas SAE 15W-40 Magnum High TBN long drain truck oil (for 2007 and earlier trucks )instead. The break down shows Zinc - Wt% at .14 for the Magnum oil. I wanted to use Lucas 20 W/50 Racing break-in oil w/3600 PPM Zinc. Can anyone tell me if the Magnum Oil has enough PPM of Zinc to use for the break-in. The Magnum also has "High Detergent Action", which can't be good. Thanks.

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Re: break in oil

Post  whatbumper on March 10th 2016, 3:09 pm

Flat tappet cam?

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Re: break in oil

Post  rmcomprandy on March 10th 2016, 9:09 pm

That 15w-40 is good oil for a flat tappet valve train; (after break-in).

I personally use Amsoil 30 weight "break-in" oil made for ONLY that purpose and is to be drained after break-in.
Lots of companies have the same type thing; oil JUST for break-in only.
BR or BR-30 from Joe Gibbs is another one.

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Re: break in oil

Post  GT300TD on March 10th 2016, 9:35 pm

whatbumper wrote:Flat tappet cam?

Flat tappet solid lifter, Got it from Randy M.

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Re: break in oil

Post  GT300TD on March 10th 2016, 9:36 pm


Thats Randy

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