I bought in bulk last year. You don’t use much in one engine. But I do 5-6 a year so I buy knowing that. Really any paste product is fine. Liquids don’t do anything for those first passes of lifter over lobe as the engine starts and oil pressure comes up. It has to stay in place. That’s why I use an acid brush and apply after cam install, after checking lifter bore size and verifying rotation. Last thing before the lifters go in for good. Then I know it’s where it needs to be.