Does anyone now what the lower ppm zinc limits are for API CD, CE, CF, CF-2, and CF-4 oils are? Thanks, Hullthumper.
API CD, CE, and CF oil zinc limits
- Thread starter Hullthumper
- Start date
- Status
No, as I could only find SN, SM and a few not on your list, BUT if you do find the limit for a C3 diesel oil pleaselet me know on this thread:
C3 Zinc limits
C3 Zinc limits
Skyship, I emailed API and presented this question a few weeks ago. Its not a surprise but I have not received a reply or anything from them.
There are no chemical limits in those old API specifications, just engine tests. The first API C category to introduce any chemical limits was API CJ-4, which sets maximum limits for sulphated ash, sulphur and phosphorus.
Furthermore, none of these categories place a limit on zinc, but they do limit phosphorus. As I said in that link you made Skyship, the maximum P limit for ACEA C3 is 900 ppm; the minimum is 700 ppm but C3 is the only ACEA category with a chemical minimum limit.
You can find this stuff freely, eg here.
Furthermore, none of these categories place a limit on zinc, but they do limit phosphorus. As I said in that link you made Skyship, the maximum P limit for ACEA C3 is 900 ppm; the minimum is 700 ppm but C3 is the only ACEA category with a chemical minimum limit.
You can find this stuff freely, eg here.
Weasley,
Thanks for the reply and the link. In the back of my mind I thought that it might have been the end results rather than the means. You confirmed it. So long as it met a certain wear number they did not care how it was achieved. Also, thanks for the link, very informative.
Thanks for the reply and the link. In the back of my mind I thought that it might have been the end results rather than the means. You confirmed it. So long as it met a certain wear number they did not care how it was achieved. Also, thanks for the link, very informative.
- Status