cam tappet article from Hot Rod mag

[70herald]

Hi all
Since this applies to almost all of our engines, I posted this in the pub. It is an interesting article from the Hot Rod world taking a look at what is going on with short lifer / cam lifespans.
Yisrael

https://www.hotrod.com/techarticles/engine/flat_tappet_cam_tech/

 

[YankeeTR]

I've posted this article before but it always captures new eyes each time it reappears.

Thanks.

 

[PAUL161]

GMs EOS (Engine Oil Supplement), added to the oil at 2oz per 5 qts oil, will increase the ZDP by 160 ppm. (Or so they say). At $8.00 per 16 oz bottle, it's pretty cheap per oil change.

Valvoline Synpower Oil Treatment, Has lots of Moly and ZDP. added at the ratio of 1 oz per qt, will add 100 ppm of Moly and 75 ppm of ZDP. It's $4.00 per 15 oz bottle. Not bad on price either.

 

[70herald]

I think that the suggestion to use Rottela or other diesel rated oils is a better idea. Modern lube oils are VERY complicated chemicals, and randomly adding an additive of any type will not necessarily improve the lubricating or protective properties of the oil.
Yisrael

 

[martx-5]

I think that the suggestion to use Rottela or other diesel rated oils is a better idea...
Yisrael

You have to be careful here also, because, as of 2007, diesel oils will be reducing the ZDDP as the big rigs start using catalytic converters.

 

[tomshobby]

This is another take on this subject that has been making the rounds for a while. Note that it is a little out of date.

https://www.capecodbritishcarclub.org/phpBB2/viewtopic.php?t=839