I think the change was in 87. Ive owned 2 86's with the Exxon Valdez hoses on them. I have to check my new car to see if it has been replaced yet.Tom Walker said:At some point in time, the original oil lines @the filter adapter are going to let go. Lost one back in 1990 on the way home from work. Bought 2 new ones and noticed that they were built better. Mine let loose @ the end where the swedged end was. Newer lines have better braiding! Dealership told me a change was made during the 86-87 model line. Good luck w/leak!!!