Where to buy ZDDT additive for oil?
08-11-2008, 02:50 PM
#4
Instructor
My local speed shop has some and I would think any decent speed shop would although that’s not confirmed. Its possible I'm just lucky although I doubt it.
Mark
Mark
08-11-2008, 03:47 PM
#5
Race Director
Why? Alot of off the shelf oils are good to go. Mobil recently re-introduced one of their oils to specificly adress the issue and most of 'high mileage' oils have adequete levels. NAPA sells a Valvoline oil thats good to go as well.
08-11-2008, 06:38 PM
#7
Le Mans Master
Thread Starter
I run redline synthetic in EVERYTHING now and I love it, but my the only place local to me that carried it (Livernois) quit carrying it, so now I have to order it from summit and thats a pain in the ***. So... I was thinking of switching to mobil 1 and putting the additive in there. I think I might just stick with the redline though.
08-11-2008, 07:01 PM
#8
Team Owner
I run redline synthetic in EVERYTHING now and I love it, but my the only place local to me that carried it (Livernois) quit carrying it, so now I have to order it from summit and thats a pain in the ***. So... I was thinking of switching to mobil 1 and putting the additive in there. I think I might just stick with the redline though.
08-11-2008, 07:22 PM
#9
Le Mans Master
Thread Starter
Thanks!
08-11-2008, 07:31 PM
#10
Le Mans Master
Why do you want to add ZDDP to a roller-cam engine? There's virtually no reason TO do this, and a number of reasons NOT to - including reduction life of O2 sensors and cats.
The ZDDP thing is a flat-tappet (GEN I) issue - ZDDP was reduced to 800 PPM as part of the GF-4 spec specifically as roller cams don't require it. This lead to a ton of failures in flat-tappet cam engines, specifically the flat-tappet roller-cam profiles with high spring pressures like CompCams Xtreme Energy series. These engines require 1400+ PPM ZDDP and need to use a non-GF-4 oil such as the Castrol, Quaker State or Lucas oils made for "older engines".
Bottom line - you don't want to add ZDDP to an LTx or LSx (or even >'87 Vortec) engine.
The ZDDP thing is a flat-tappet (GEN I) issue - ZDDP was reduced to 800 PPM as part of the GF-4 spec specifically as roller cams don't require it. This lead to a ton of failures in flat-tappet cam engines, specifically the flat-tappet roller-cam profiles with high spring pressures like CompCams Xtreme Energy series. These engines require 1400+ PPM ZDDP and need to use a non-GF-4 oil such as the Castrol, Quaker State or Lucas oils made for "older engines".
Bottom line - you don't want to add ZDDP to an LTx or LSx (or even >'87 Vortec) engine.
Last edited by billla; 08-11-2008 at 07:34 PM.
08-11-2008, 07:36 PM
#11
Le Mans Master
Thread Starter
Why do you want to add ZDDP to a roller-cam engine? There's virtually no reason TO do this, and a number of reasons NOT to - including reduction life of O2 sensors and cats.
The ZDDP thing is a flat-tappet (GEN I) issue - ZDDP was reduced to < 800 PPM as part of the GF-4 spec specifically as roller cams don't require it. This lead to a ton of failures in flat-tappet cam engines, specifically the flat-tappet roller-cam profiles with high spring pressures like CompCams Xtreme Energy series. These engines require 1400+ PPM ZDDP.
Bottom line - you don't want to add ZDDP to an LTx or LSx (or even >'87 Vortec) engine.
The ZDDP thing is a flat-tappet (GEN I) issue - ZDDP was reduced to < 800 PPM as part of the GF-4 spec specifically as roller cams don't require it. This lead to a ton of failures in flat-tappet cam engines, specifically the flat-tappet roller-cam profiles with high spring pressures like CompCams Xtreme Energy series. These engines require 1400+ PPM ZDDP.
Bottom line - you don't want to add ZDDP to an LTx or LSx (or even >'87 Vortec) engine.
08-11-2008, 07:39 PM
#12
Le Mans Master
08-12-2008, 05:45 AM
#15
Team Owner
08-12-2008, 04:12 PM
#16
Le Mans Master
Thread Starter
From the Eastwood site:
ZDDP also alters bearing and journal surface characteristics to prevent metal to metal contact. Under extreme conditions like a high performance motor, ZDDP reduces the tendency of parts to scuff or gall under heavy loads.
08-12-2008, 04:35 PM
#17
Le Mans Master
:
08-12-2008, 04:41 PM
#18
Le Mans Master
Completely agree that it reduces the likelihood of galling when the film breaks down - as can happen with high spring pressures and flat-tappet cams. Roller cams/lifters can't really gall unless the roller stops...and if this happens, again - the lube won't matter.
For a (real) racing engine - maybe - as they run close to the edge and do have situations where the lubrication isn't perfect and a little extra protection may save the day - for a street engine, I just don't see it. But, as noted, in the end you need to determine what makes you comfortable and what the risk/reward trade-offs are. I'm definitely not trying to "convince" anyone.
Last edited by billla; 08-12-2008 at 04:44 PM.
08-12-2008, 05:22 PM
#19
Team Owner
