What's the most available motor oil with enough zinc in a 40 or 50 weight ?
Thanks.
Thanks.
Where is it?????????????????Read the sticky at the top of this forum and find one that you can get your hands on.
There's a "list" about half way down page 7.
On page seven...DO NOT USE THE NEWER CJ RATED SHEEL ROTELLA 15w-40FOR FLAT TAPPET CAM PROTECTION,THE ZDDP HAS BEEN REDUCED TO UNDER 1200PPM in the newer CJ rate shelle rotella 15w-40 which is below the rec lvl to properly protect a perf flat tappet cam. The older CI rated shell rotella 15w-40 is still ok to use for flat tappet cam protection but if you already have the newer CJ oil in the motor use some gm eos or crane superlube breakin concentrate with the newer shell CJ rated 15w-40 oil with reduced ZDDP you should be ok.
As far as oils to use with decent zddp lvls for flat tappet cam breakin and post cam breakin here are a few (conventional unless otherwise noted) oils that tested as having a minimum of or above of approx 1200ppm Zn which is required for aftermarket flat tappet perf cam protection.
* SHELL ROTELLA SINGLE GRADE 30WT
* CHEVRON DELO 400 LE 15W-40 (APPROVED BY MFG FOR GAS & DIESEL ENGINES)
* CASTROL TRUCK & 4X4 SYN BLEND 15W-40 (NOT DIESEL OIL)
* LUBRIPLATE GPO 15W-40 OIL (BUY ONLINE DIRECT FROM MFG)
* PENNZOIL GT 25W-50 RACING OIL
* VALVOLINE NSL/NOT STREET LEGAL 20W-50 (ORDER FROM NAPA/SUMMITT/JEGS)
* ROYAL PURPLE FULL SYN 10W-30
SCOTT
Were they flat tappet or rollers?Personally - I'm done with the Rotella experiment - it's only cost me two cams.
I'm going with Valvoline from this point forward.
From the Valvoline website..
Bulletin: 2008-003a
Date: June 2008
Many hands-on car enthusiasts and engine experts believe the lower levels of zinc in “SM” engine oil is causing excessive wear in older style push-rod and flat tappet engines. This is despite the fact that all new engine oil classifications are intended to be backward compatible. This has resulted in the widely accepted belief that modern engine oil is not adequate to protect older engines.
Consumer Solutions
There are high-zinc engine oils available to meet this need. It is important to note, however, that the entire additive package still needs to be balanced for best performance. For example, engine oil with a high zinc level but low detergent may not perform over a drain interval of 3,000 miles or longer.
Valvoline offers two solutions to the zinc issue
Valvoline Racing VR1: 75% higher zinc than SM engine oil with a balanced additive package designed to work in both racing and street-legal applications. This product will protect older style push-rod and flat tappet engines. Valvoline provides this product in both multi and mono viscosity grades: SAE 20W-50 (part vv211), straight SAE 50 (part vv235), SAE 10W-30 (part vv205), SAE 30(part vv223), SAE 40 (part vv229), and SAE 60 (part vv241)
Longer-Lasting Zinc/Phosphorus: Valvoline uses an advanced zinc/phosphorus additive that keeps higher levels of phosphorus in the engine oil where it protects the engine, instead of poisoning the catalytic converter. Valvoline is the only brand offering this unique additive across its entire line of passenger car engine oils, including SynPower which is the only synthetic offering this additive. www.valvoline.com
Boy,you can lead a horse to water but you sure cant mak it drink.(LOL!!!)
AGAIN FOR THE 40TH TIME,THE NEWER CJ RATED SHEEL ROTELLA IS NOT ANY GOOD FOR SAFE FLAT TAPPET CAQM PROTECTION ANYMORE SO WHY CHANCE USING IT WHEN THERE ARE OILS WITH BETTER ZDDP LVLS,I GUESS JUST PALIN OLD STUBBRON AS HELL (LOL!!!!) IT'S THE OLDER CI RATED ROTELLA THAT WAS OK,NOT THE NEWER CJ.
Scott
Im not to familiar with the #'s companys post on there sites...I have seen many lie, exagerrate and bash. Im sure as heck not as knowledgeable as alot of people here....learn more everyday. My builder is one of the best and if he uses it and says its good I trust him. He doesnt have a huge following for nothing. He has done hundreds of Flat Tappets since he has been with us with this stuff and not one failure....mild to wild...which would make me think that alot of the time if someone has a cam go flat using it, something happened during the break in procedure. Just my 2 cents.I myself would not use to comp cams additive for flat tappet protection as it has much less zinc & phos./zddp ,than GM EOS [old or new version] , crane break-in lube, zddp plus or cam shield.
This stuff also has a higher detergent content, not good for break-in of a f/t cam.
The comp stuff has been tested by blackstone,cat and stavley and all tests show very little zddp compared to the others.
3) CRANE SUPER LUBE BREAKIN CONCENTRATE OIL ADDITIVE - 51,960PPM/6,007PPM/1PPM/APPROX 50WT BASE STOCK(BASICALLY SAME #'S AS THE DISCONTINUED GM EOS/IT'S GREAT FOR CAM BREAKIN AND ONGOING CAM PROTECTION POST CAM BREAKIN/THE LOW DETRGENT IS NOT AN ISSUE AT ALL BECAUSE THE OIL HAS PLENTY OF DETERGENT TO TAKE CARE OF CLEANING)
4) COMP CAMS NEW CAM BREAKIN LUBE OIL ADDITIVE - 914PPM/8066PPM/6228PPM(FAILED TO MEET MINIMUM Zn REQ/DETRGENT EXTREEMLY HIGH WHICH CAN STRIP OFF THE ALREADY TOO LOW Zn/APPROX 140WT GEARLUBE LIKE BASE STOCK/I WOULD NOT USE IT)
Somebody has to, so it might as well be the guys on this website. It wouild be nice if oil was what it used to be.Remember don't try to play chemist with your oil.
But, Mr. 2 posts, this is not 2008 technology cars we're using here on team Chevelle. It's 1960's flat tappet cam technology, which needs 1960's additive levels. Does your local parts store stock Catalytic converters for your 1968 Chevelle?? An O2 sensor for your 1971 Big Block :noway:Interesting that you said that, If people would do more research and not try to make your own sweep the kitchen oil people may not encounter as much flat tap cam wear. Granted you have to assume the engine builder did everything correct on his part. There are also a lot of variables to be accounted for. Oils of the past were alright but today your have catalytic converter and O2 sensors and and if you have a high zinc/phosphorus the ash will burn and get onto your sensors and cause premature failure. If oils of the past were so good why don't new performance cars or new cars come with straight 30 weight oil? The oils have matured into a better product with the addition of new technologies.