Aussie wrote:ah, shear strength (film strength) extremely important and widely misunderstood.
VI in engine oils usually have an SSI ranging from 15 to 25 to 35 or even worse, we use only the 15 SSI polymer in engine oils but I know from info fed to me that most use 25 or even 35 and this is something that no one will ever own up to for obvious reasons.
cheers
snowman wrote:so aussie...what oil are you running in YOUR car?
Aussie wrote:15w/40, semi synthetic CH4/sj, JASO DH1, medium ash, TBN of 11.64, made with 15 SSI VI and proud to say all Lubrizol additives, even the non synthetic part is group 2, not group 1.
Aussie wrote:or the 3.2 diesel buy a 15w/40 semi synthetic, medium ash (1.3% to 1.5%), Ch4/sj, JASO Dh1 with a TBN (total base No) greater than say 10 (preferably up around 11 or so) in a reputable brand, these specs will set you on the right track.
all oil company product data sheets should give these specs, if they don't, ditch them as they are either trying to hide something or don't know what they are doing, simple.
snowman wrote:sierra,
did you find an aussie sold oil with these specs in your research?
Aussie wrote:the best I can say to snowman and others is that in my opinion you should look for the following specs...
for the 3.2 diesel buy a 15w/40 semi synthetic, medium ash (1.3% to 1.5%), Ch4/sj, JASO Dh1 with a TBN (total base No) greater than say 10 (preferably up around 11 or so) in a reputable brand, these specs will set you on the right track.
in cold climates go for a 10w/40 same specs
Homer wrote:I am thinking an aussie oil company with the same name as Dick Johnsons XD Bathurst car
snowman wrote::?
snowman slow.
sierra wrote:
They don't give much info on the specs of their oil though and that's supposed to be sign of hiding things?
"for the 3.2 diesel buy a 15w/40 semi synthetic, medium ash (1.3% to 1.5%), Ch4/sj, JASO Dh1 with a TBN (total base No) greater than say 10 (preferably up around 11 or so) in a reputable brand, these specs will set you on the right track.
in cold climates go for a 10w/40 same specs
Steve-o wrote:This one comes close
Pulled from the Nulon website:
15W-40 High Protection Diesel Formula Engine Oil
http://www.nulon.com.au/products/15W-40 ... ngine_Oil/
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