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  1. Official EcoDiesel Oil and Filter Recommendations

    Trans temps have been the only temperature difference I have noticed between stock and GDE. Trans seems to stay cooler. Noticed no change in oil & coolant. While I have seen my oil get pretty hot pushing the truck hard up grades with the trailer the coolant really didn’t budge much. I can’t...
  2. Official EcoDiesel Oil and Filter Recommendations

    Yeah I have seen the oil temp get over 250 towing up hills, don’t think I have seen it break above 260 though. Reading this thread it’s interesting that GDE runs T6 in his Eco Diesel. I may reach out to them and ask about it. Here’s the truck and camper, our last trip to Durango.
  3. Official EcoDiesel Oil and Filter Recommendations

    Just found this thread and thought I would put my Black Stone report here This is Pennzoil Platinum Euro 5w40 in a 2023 Ram. Truck was GDE tuned almost exactly at the 1/2 point on this oil. Lot of towing, around 1/3 of the miles are pulling a 6,500 lbs travel trailer through AZ and CO. Was...




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