I'am thinking about changing oil in gearbox.
Car calls for GL4+ 75w85, so my question is if cars says GL4+ 75w85, am I allowed to use GL4 without + and am I allowed to use GL4/GL5 LS? What is the diffrence between that spec? What other gradation's of oil can I use?
My older car (2002.) (by manual) needs 75w90 Tutela ZC 75 Synth, manual says it meets requirement of API GL5 again can I use GL4 OR GL4/GL5 LS?
Last edited by IvanPletex; 04/30/20 06:44 AM.