Here's a good video of a recent test of diesel fuel additives. Good to see the performance and repeatability of the Opti-Lube XPD additive from independent tests done years ago. I still run Opti-Lube XL in my 24 2500HD Duramax primarily for lubrication benefits.
I've ran Opti-Lube XPD and XL in a 2015 2500HD Duramax for 11.5 years and 100k miles. My boy has driven it the last couple years. Still runs great and never had injectors out of balance or spec. I run a lift pump too with +8 at the test port.
I had to replace a DEF temp sensor, 9th injector, and nox sensor, which is common in those rigs.
Would have liked to seen the Opti-Lube XL, which is primarily for lubrication and why I use it to protect the CP4. Cost is not a factor to me cause I'm not a high mileage user.
I've ran Opti-Lube XPD and XL in a 2015 2500HD Duramax for 11.5 years and 100k miles. My boy has driven it the last couple years. Still runs great and never had injectors out of balance or spec. I run a lift pump too with +8 at the test port.
I had to replace a DEF temp sensor, 9th injector, and nox sensor, which is common in those rigs.
Would have liked to seen the Opti-Lube XL, which is primarily for lubrication and why I use it to protect the CP4. Cost is not a factor to me cause I'm not a high mileage user.