Originally Posted by David1
.............I have heard for years people who have told me to try REDLINE D4 and now D6 is better and I would notice a huge difference in performance..... Well Im going to try it... I ordered 9 Quarts of it.....
If your vehicle calls for the higher viscosity of D4 (ie >7.0 cSt at 100 deg C) vs the lighter D6 (<6 cSt), then I'd stay with the D4.
.............I have heard for years people who have told me to try REDLINE D4 and now D6 is better and I would notice a huge difference in performance..... Well Im going to try it... I ordered 9 Quarts of it.....
If your vehicle calls for the higher viscosity of D4 (ie >7.0 cSt at 100 deg C) vs the lighter D6 (<6 cSt), then I'd stay with the D4.