HomeAll RepliesReply To: Overfilled oil in 4.3L V6 (LU3 Engine) Reply To: Overfilled oil in 4.3L V6 (LU3 Engine) Sponsored June 24, 2023 at 2:21 pm #766918 2x4Silverado_2010Participant I should mention I have around 85K miles on my truck Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored