So i went with the break in oil and i was not disappointed. the oil filter combo went the distance of the break in. for my Equinox this was 500 miles. zero metal flakes after the first change. the oil still had a nice red color and everything is sealed up and broke in so smooth. they got me to total seal compression. i am 100% happy as this is my first use of a complete Amsoil from New Engine day 1. i will not ever use another product again. Amsoil has a new life long customer!!!! keep it up. i am one of many who understands Amsoil is the way to Go now.

Only break in oil i will use in future builds rings set perfectly compression is on point Highly recommend !

Amsoil SAE 30 Break-In Oil: Great Gear for Gearheads, Not Everyday Drivers As a gearhead who recently rebuilt my engine, I wanted the best possible break-in for optimal performance. That's why I opted for Amsoil SAE 30 Break-In Oil.

I bought this break-in oil because of the high-quality reputation of Amsoil. My online order arrived on schedule and in great condition. I did have one question which was answered super fast via email.

Easy to see. Works as advertised. Good price. Highly recommended.

After recently wiping out hydraulic flat tappet cam and lifter sets using parts store oil with zinc additive, I switched to Amsoil. I've since broke in two SBC hydraulic flat tappet engines with Amsoil. Everything broke in the way it should. I will never go back to store bought oil and additives for engine break in. This stuff works!! Don't cheap out on your investment with cheap oil, especially when breaking them in!

I have 1970 mopar 340 that been rebuilt. Sitting covered & pickled for 20 years. Used a different oil & assembly lube. I took it apart to recheck everything- found residue on pistons & some rings were sticking. Cleaned everything & used AMSOIL & assembly lube. Big difference from the other oil.

I'm a preferred customer for Amsoil so you know I'm educated on oil products any product Amsoil has will be an over the top product choice!!!! I have been building street rods and custom cars for 64 years now and now building my last one new LS engine so Amsoil break-in oil for sure my choice!!!!!!

The product shipped pretty quickly, so that was nice to be able to get the oil very fast. The product seemed to do its job in the Toyota 86 we own, that just last year got a new engine installed. The product is a tad more expensive than the regular oil, but you are getting a thinner higher quality oil.. so in my opinion it is worth the buy for a new engine. We have nothing bad to say about this product thank you AMSOIL

Great for breaking in rebuilt and built motors, especially when you’re adding performance parts.

Highly recommend

Always a good and smooth experience with amsoil. Only thing I run in my performance engines and slowly changing over my daily’s to amsoil.

I'm always nervous breaking in flat tappet cam and this oil eased my mind and did its job perfectly. In extremely happy with the results and so is my customer.

Amsoil is the best oil I’ve ever used. This is the 5th engine I’ve built using amsoil break in oil and have great results in all of them. Rings, seals seated well on all of them. Great oil pressure. I recommend to everyone in this field of work you won’t regret using amsoil.

Great product… slick but sticky and stays on parts. Used this product when I was building my 1987 Jeep Wrangler 258 I6 engine and it needs high zinc oil. Going to follow up with their Amsoil Z-Rodd for the life of the engine. Built with Amsoil, Runs on Amsoil. 🤙

If you build engines and you want a oil to protect your build and break in your masterpiece. This is it

Works as described for engine break in recommended.

The absolute best break-in oil to use in a newly rebuilt engine!

I used this in a new LS motor and it seems to be working out great! I used it in a big blaick perviously and had no issues as well!

Great oil and fast shipping!