Need info about what new and old gear oil should look like. I own a 2008 Toyota FJ Cruiser with 93,000 miles & an automatic. last month started getting a strong hesitation/stuttering when accelerating around 30MPH. "easily" solved by letting up on gas pedal or giving it more gas. All family members who drive it feel this strong hesitation/stutering. Took it to the Toyota dealer who does all my recommended services and oil changes. They felt the hesitation/stuttering. No codes came up when hooked to computer, and they had no answers for me. Took to a second local Toyota dealer serive who felt the hesitation, and also got no codes from computer. They looked over my maintenance records and questioned whether the "wrong gear oil" was added when I had it serviced at 90K miles (included a flush and fill of gear oil). THey want to drain the gear oil and see what was put in. I am taking it in soon for this and has asked to watch them do this. I would like to know what I should see if the correct new gear oil was put in at 1st dealership and would welcome suggestions for questions to ask. Thanks.