Alfa156Melb 9 Report post Posted May 15, 2013 Smaky, I've seen you recommend 75w90 GL5 many times for the TS/JTS manual gearbox, however the book says 75w80 GL5... Why do you prefer the heavier grade of oil? is it to compensate for age or something else? PS - I'm considering using Redline 75w90 NS GL5 Quote Share this post Link to post Share on other sites
Smaky 73 Report post Posted May 15, 2013 75w90 GL5 is the spec the gearboxes work best with, and what the ALFA books say. Quote Share this post Link to post Share on other sites
Alfa156Melb 9 Report post Posted May 15, 2013 Fair enough - I'll buy the 75w90 - however the book does say 75/80.. maybe they spec'd a different oil here in Oz? Quote Share this post Link to post Share on other sites
AlfaKay 0 Report post Posted May 16, 2016 (edited) Hi All, I found an these two oils AC Delco Axel Gear 75w-90 GL-5 and LUKOIL 80w-90 GL-5 (see pics). Will they work? Edited May 16, 2016 by AlfaKay Quote Share this post Link to post Share on other sites
AlfaKay 0 Report post Posted June 25, 2016 (edited) Thank you! Edited June 25, 2016 by AlfaKay Quote Share this post Link to post Share on other sites