Anyone see new CJ4 rated HDEO on the self yet?

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The spec is only for engine built after 1/1/2007 and has little to no benefit in older engines from all I can tell. Its the chemistry of the oil that is changing not neccessarily does it mean CJ4 is better oil for pre 1/1/07 engines. The older spec oil will continue on the market, millions of vehicles for them. The CJ4 oil will likely cost more money for the higher end oils, i.e. synthetic's.
 
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Amsoil will introduce their PAO based, CJ-4 rated, 5w-40 ("DEO") on 1 Oct, priced about the same as their 10w-40. One of the main benefits that I see is that these CJ-4 rated oils will also be excellent for newer gas engines. Expect to see them as CJ-4/SM products for mixed fleet use. The reduced amount of sulfated ash should have a beneficial effect on piston crown and groove deposits. TS
 
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will the other additives remain the same i.e. zinc and phos.? in delvac 1 5w40
I thought the whole point behind CJ4 was to lower the ZDDP levels for catalyst equipped diesels.
 
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Chicagoland, IL USA
I was in the local Walmart today and notice that the Shell Rotella 15W-40 jugs they had there had a new design...as I suspected, when looking on the back at the specs, CJ-4 was listed. So, CJ-4 oils have hit the shelves. Chuck
 
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398
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Chicagoland, IL USA
Was in Menards locally today getting insulation and walked through the oil aisle...they have gallon jugs of Shell Rotella T 10W-30 CJ-4 (and API SM) rated...same marketing design that's on the the gallon jugs of 15W-40 that were at Walmart. I think I'll go back tomorrow and pick up a couple jugs, I think this ought to be a good oil for my moms car that has a coolant leak...I'd think a HDEO would be a "hardier" oil than a PCMO and would take running with coolant a little better. Chuck
 
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