Originally Posted by
philavine
I've been having "notchy" shifting recently on my '14 mirage 5 speed with 38,000 miles.
This is a comment that's usually heard on the Mirage manual transmission when new. What steps can be taken? Not many. The easy steps are adjust the clutch & change the oil. I hope this isn't the beginning of bigger problems for you.
Originally Posted by
philavine
I've tried adjusting the clutch but not much improvement.
Can you describe your adjustment procedure? The adjustment has been posted here but I'm not sure if you followed it or tried your own method.
Originally Posted by
philavine
I think I need to change the gear oil. Seems straight forward, until I tried to buy 75w80 gear oil. Napa has some for $36 a quart(!) but they'd have to get it shipped in.
Are all 75w80 oils this expensive?
No. While there are other options for manual transmission lubricants that meet the original specifications, most forum members have reported positive results using Redline Full Synthetic MTL 75w80.
I'm not sure where you are in North Carolina but I'm sure you can find it locally. Visit RedLineOil.com to find a dealer near you. O'Reilly Auto Parts is listed as a distributor.
Originally Posted by
philavine
Can I use a 75w90 weight oil w/ GL4 and GL5 ratings? (This is readily available and more reasonably priced)
I'm sure you can use a thicker oil in your manual transmission, but do you want to? I'm not sure a thicker oil will help make shifting easier, but maybe it will. You'll want to stick to GL-4 as GL-5 is known to be a problem with the synchronizers.
Originally Posted by
philavine
Thanks for any ideas about this.
If you do use 75w90, we all would want to know how it works for you. It would be interesting to know the condition of what you drain out. Would you consider having a used oil analysis done?
Last edited by Eggman; 12-16-2017 at 11:38 AM.
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View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)