What about very slow, deliberate 1-> 2 shifts at 1800 to nurse it thru warm up? I know that would be a PITA but every last manual transmission car I have has seemed to benefit from this. YMMV, but I find that cars that have not had their second gear synchro's cared for in this manner exhibit weakness in their 2nd gear sychro's when at operating temp (and needless to say to a much worse extent when cold), often at the 70,000 mile mark. This truly is a PITA 'cause "granny shifting" like this threatens a "bunt" on the rear from individuals following closely, not paying attention, and not expecting a substantial pause in your acceleration away from a stop. I know, I know! It's vexxing for them, too 😐 .
Last edited by Cdn17Sport6MT; 02-17-2019 at 05:58 PM.