Shell Rotella rating reduced

[BlackCat13]

Anti wear additives have been reduced in most all "street oils" as we know.

I noticed that the new Rotella oil label has a much newer "S" rating, only one grade lower than the "top of the line" automotive grades.

Does this mean that the ZDDP, etc. has been reduced to the point that anti-wear additives should now be used in the Rotella also?

[rookie]

That is my understanding, I'm not sure the date of change but i've heard they are taking out all the goodies.

[crazyman]

There's always the good old 4 stroke lawnmower oil.

[Pinhead]

Which is why Amsoil doesn't pass certification... They refused to take out the good stuff and lost their certs for it.

[MrWOT]

Bike oils work wonders for anti-wear

[BlackCat13]

Originally Posted by MrWOT

Bike oils work wonders for anti-wear

So you run bike oil in your 400 hp 350 chevy engine on the street?

Exactly what brand of oil and grade?

[Devious]

Unfortunately the bike oils are suffering from the same issue as the auto and deisel oils - reduced anti-wear additives compared to just a couple of years ago (IIRC, this is government mandated in order to get a specific rating - protection be damned). The July, 2008 issue of Circle Track covers the wear issues on flat tappet cams, and several manufacturers are having issues with cam and bucket wear or rocker arm breakage on DOHC engines.

There are several oil companies that still have not given into the pressures of reducing the zinc, phosphorus, sulphur, etc. anti-wear additives.

Also, there are several good anti-wear additives that are available on the market.

The issue is seperating the wheat from the chaff, and not falling for the marketing hype. Public forums may not be the best place to get info on oils and lubricants. Do you own research and make your own decisions... it is the greatest freedom we have.

[Cammer]

I caution members to do research before using diesel oils in gasoline engines!

Diesel oils are formulated for the unique characteristics of diesel engines and contain additives which are not necessary for a gasoline engine. There is only so much room for additives in an oil and gasoline engines have different additive requirements than diesel engines. GFN has a resident oil expert and I am sure he may expound on this topic in the future.

Extra anti-scuff additives may be indicated for some gasoline engines during both break-in and operation. All new engine builds need anti-scuff additives. Most modern production cars will run fine with a quality motor oil meeting car manufacturer's specifications.

Please do your homework before arbitrarily changing the oil you use in your vehicle!

[CREW CHIEF]

There are many oil additives out there that put the zinc back in the oil.
Comp. cams,Crane cams,GM E.O.S, etc.
Many of my customers are running 1/2 a bottle every oil and filter change.
I would not use any more than 1/2 a bottle because it may cause deposits.

[84Dave]

Many use 15W-40 Diesel oils, quite successfully, in their performance gas engines. Look at the API label on the bottle/can/jug carefully. If the label says 'CJ-4', the ZDDP has been reduced to conform to Fed standards mandated late 2006 for year 2007 forward. If the API label is absent the CJ-4, but includes CI-4/CI-4+ or 'CI-4Plus', that oil has the higher levels of ZDDP for older Diesel engines. Some/most labels will now show BOTH the CJ-4 and CI-4 ratings. If so, the ZDDP is reduced to meet the CJ-4 rating. As of 5 months ago, I was still able to to find oil that had only the CI-4 designation listed on the API lable. I purchased 12 gallons of the stuff to use in my GAS '94 Chev Blazer and 2000 S-10 pickup. I use Brad-Penn in my performance engines. Dave