ZDDP oil additive necessary on Hydraulic roller cam engine?

[inviolet]

ZDDP oil additive necessary on Hydraulic roller cam engine?

I don't think so.. But would it hurt or would it help?

I run none synthetic straight castrol 20w-50 in the summer and in the winter I'll mix the 20w-50 with few quarts of 10W-40.

What do you guys run?

[72cudamaan]

No need for zddp on a roller.

[high perf mopar]

ZDDP oil additive necessary on Hydraulic roller cam engine?

I don't think so.. But would it hurt or would it help?

I run none synthetic straight castrol 20w-50 in the summer and in the winter I'll mix the 20w-50 with few quarts of 10W-40.

What do you guys run?

it's always a good idea to have an adeqaute amount of zddp in these old motors..when my hemi broke the pushrod cup in my driveway indy cylinder head started talking about the lack of zinc/phor in the oils as the probable cause..it blackened the pushrod tip at the adjuster...covered in oil..non zddp additive:::(((($$$$$$..insurance is good..

[brads70]

I have a hyd roller and still use good oil with lots of zinc. I'm also using T&D roller rockers and they say to use oil with lots of zinc in it. I figure I only change my oil once a year so the extra cost is no big deal. Cheap insurance?

[inviolet]

I have a hyd roller and still use good oil with lots of zinc. I'm also using T&D roller rockers and they say to use oil with lots of zinc in it. I figure I only change my oil once a year so the extra cost is no big deal. Cheap insurance?

What brand oil do you use? and what the viscosity?

[brads70]

What brand oil do you use? and what the viscosity?

Brad Penn 20-50  , I've also used Valvolene VR-1 10/30 in another engine.

[1970 RT Challenger 1970]

Brad, With those racing oils, how many miles (street and highway) can you put on before having to change it again?

[brads70]

Brad, With those racing oils, how many miles (street and highway) can you put on before having to change it again?

IDK? good question? Same as regular oil I would think?  I don't put enough miles on mine yet to worry about it, so the "once a year weather it needs it or not" so far works for me! 

[Chryco Psycho]

 
 I would still use an oil with lots of ZDDP in any case , insurance is good !!
 as with most oils you can extend oil change lenght if the engine is not used for severe duty , cold starts , lots of short trips , as long as the engine is fully warmed up & driven some distance the oil will stay clean .

[MLStuder]

Just as an after thought folks, I did a little research and Rotella Diesel oil has nearly as much ZDDP as Joe Gibbs break in oil.
Diesels take a pounding, so Rotella is an alternative. I am about to use the Joe Gibbs for breaking in my small Hemi engine.
After that, I'll run Rotella. I have an older flat tappet 360 that has 130K miles and all I have ever run is Rotella in it.
Check on line. Gibbs was listed as having around 1300PPM and in one test Rotella had 1400PPM. Another tested it at 1200PPM.
Anything above a 1000PPM is supposed to be 'acceptable' but I'll go with the bigger number every time, if I can get it.

Having said the above, the Rotella is higher in detergent which will fight the higher ZDDP levels... Its not just about the ZDDP!
Look at the detergent factor too.  Also, I would not go the additive route. The guru's say that blened oil is the only guaranteed
way to go. If you have had good luck with an additive, great! I am not going to gamble a $5000.00 engine on $15.00 difference
in a ZDDP blended oil versus a cheaper oil with an additive....   My 10 cents worth....

[high perf mopar]

I have a hyd roller and still use good oil with lots of zinc. I'm also using T&D roller rockers and they say to use oil with lots of zinc in it. I figure I only change my oil once a year so the extra cost is no big deal. Cheap insurance?

i just switched to a solid roller,yet to fire up 4 the 1st time,,and after what i went thru with the other motor failure,,appx 5000.00 cost to fix,,oil IS cheap insurance..i use an additive from hughes so i know its in there along with vr-1 20-50.been using it for 5+ years now with no problems..when it comes to money and corp policy's,,i trust no one..

[inviolet]

So as far I've always ran Castrol 20w-50, quality wise what do you guys think??? Ok for a hydraulic roller?

I'd love to find a viscosity break down chart of different oil/brands.

I found this:

http://speedtalk.com/forum/viewtopic.php?t=30483

[inviolet]

What do you guys think about synthetic oil? 

I'm looking to switch to Mobile 1 15w-50

[Chryco Psycho]

no problem as long as you have the rings fully seated , approx 4000 miles depending on the rings used

[inviolet]

no problem as long as you have the rings fully seated , approx 4000 miles depending on the rings used

Thanks, I have at least 6,000 miles on it now.

What happens if I didn't have the 4000 miles or rings seated yet?