Originally Posted By: blackman777
I was talking about the same product, but too lazy to type turbodiesel truck, so I abbreviated it. (Also why "truck"? The stuff also works in diesel cars.)
Well, the word "truck" is in the trade name, that's all, and there is a European product with a very similar name that's quite a different product, so it's a key difference.
Originally Posted By: gpshumway
I wouldn't call it the poor cousin, it's just a full-SAPS oil for engines without particulate filters, while ESP is low-SAPS for DPF engines.
That's not correct. TDT has SA of 0.95%, whereas Delvac 1 ESP is 1.0%. They're both CJ-4 products; the Delvac merely lists more ACEA and OEM specifications. That's what I mean by poor cousin. They diverged somewhat with the switch to CJ-4, but not to the point that they are designed for totally different applications. Target market is slightly different.
Ironically Delvac 1 ESP is roughly half the price of TDT up here, since TDT isn't available at distributors here and only at the retail level, whereas Delvac 1 is generally sold at the distributor level.