I dunno 😕 exactly what but when I drive between 70 to 100 kmh and slightly apply gas, vehicle starts to shudder or vibrate and when i let off gas pedal it stops. I feel it more often than before.. Torque converter shudder? I changed spark plugs, and no problem with coils. I had my wheels alligned and balanced. And most importantly it starts when I had my transmission fluid drained and refilled first time at 140000 km, I had it drained again a few hundreds kms ago so that it may help but I get no result. I ordered shudder fix"" from ebay and waiting for that...