Hello people I have a couple problems one is when I shift into reverse I have to rev it to 3000 or more RPMs to get it to engage. Once it is in reverse there are no problems it stays in gear and reverses fine. My second problem is the fluid in my load leveler has leaked or somehow is gone from the resevoir. I know it is hydrolic fluid but what type and also when I add it how do I bleed the sysytem to remove the air. These problems are on a 89 560 SEL thanks for any help.