If the oil has a label of CI-4, it is OK. If it has a rating of CJ-4, it is the new formulation.

____________________________

Chuck stay away from those that have the letters sm in the API rating.

Gary

-Gary Burnette-

Bingo, give this man a malt beverage.



ZDDP is the high-pressure lubricant needed for flat-tappet cams. The gasoline version is zinc diaryl dithiophosphate; different temperature range.



GM EOS, STP Oil Treatment, and WalMart TechLube is the stuff. Use on cam and lifters and on rocker arm tips during assembly, and add at each oil change.



Trucks (finally!) have to have catalytic converters starting in 2007. Hooray! They are responsible for 50% of current air pollution. But the ZDDP is bad for converters, so they're taking the stuff out of oil. If you have a non-converter type truck, better add the STP on a regular basis.



BTW, it's not the zinc that does the trick, it's the phosphate that coats the cam and lifters. The zinc is what will cause the sludge in the pan.

Best regards,



Paul Menten

Meridian, Idaho

Anybody know what's in Lucas Oil treatment? I can't tell it from STP. The Lucas label says it's "100% Petroleum" but it is suggested for an assembly lube. Don't really know where these zinc/phosphate chemicals come from, but it occurs to me that they MIGHT be crude oil extracts?

I know one of the supposed benefits of STP is stickyness (still there after the oil runs off), but I have heard that machinists REALLY hate it as it is so difficult to remove, and makes machine work very tricky. I wonder if Lucas creates the same machining trouble?

6 VOLTS/POS. GRD. NW INDIANA

A little off the subject,I don't know what's in Lucas oil treatments,but I know what it does to an old Fordomatic.The transmission in my 56 only had 29000 miles on it when I put it in a couple of years ago,but had been laying on my garage floor for 10 years.Naturally it leaked like crazy when we started driving the car.I poured a car bottle Lucas transmission sealer and conditioner in it and it hasn't leaked a drop since(about 5000 miles).Whatever is in it must be pretty good stuff.

 

Paul,

Boonville,MO

Kultulz listed this Dec.17th on the hotrodders bullentin board.It's Hughes engines racing Inc. Extreme Pressure Oil Additive  PH:309-745-9558. They say it mixes with conventional mineral based oils or synthetics and is for saving those flat tappet cam lobes.One pint per oil change (5 qts oil) and you're good to go.I hope this helps and I hope it works!

>Gary

.

-Gary Burnette-

There are multiple quality additives which I need to take the time to list and record. Also, racing oil has the proper amount of zinc for break-in but is not advisable to use on the street as it does not contain the detergent/dispersant packages needed to protect a street engine.

SHELL ROTELLA CI-4 (CI-4 old formulation-CJ-4 new formulation) will most likely still be avaible from distributors and possibly truck stops for awhile.

Kultulz,What do you think about using the extreme pressure lubricant being recommended which has micron moly blended in it?This stuff does'nt reaily on zink so much.>Gary

-Gary Burnette-

I am not familiar with it. I go by what the top cam manufacturers recommend (COMP-CRANE).

All I know is that they nailed the common cam failure problems that were evidenced right after the oil reformulation. Do you have any tech info to share?

Gary,Go too> http://www.hotrodders.com/forum/camshaft-breakin-guestion-97574.html

scroll down to the picture of the Hughes Engines Racing Lube extreme pressure lubricant and click on (Tech Article )        and read What's Best for My Engine.

>Gary

-Gary Burnette-