SubaSkeet Posted September 5, 2004 Share Posted September 5, 2004 cant find a prev. post on it, so... WARNING: STUPID QUESTION i dont know what type of gear oil was in my tranny last, but it is in dire need of a refill. probly use a 90w140 or sumthin fer it, is it bad to mix oil types? Link to comment Share on other sites More sharing options...
subeman90 Posted September 5, 2004 Share Posted September 5, 2004 NO. Use 75w90 or something like that. NOT 90-140 Matt Link to comment Share on other sites More sharing options...
SubaSkeet Posted September 5, 2004 Author Share Posted September 5, 2004 even tho its hot as hell? (105+ degrees) Link to comment Share on other sites More sharing options...
calebz Posted September 5, 2004 Share Posted September 5, 2004 Owners manual says straight 90 for such conditions. Link to comment Share on other sites More sharing options...
BobBrumby Posted September 5, 2004 Share Posted September 5, 2004 because this is the post for stupid questions, here is another. what does the oil rating mean? e.g. 75w90 Link to comment Share on other sites More sharing options...
edrach Posted September 5, 2004 Share Posted September 5, 2004 75W90 is what the manual calls for. If you have an older transmission with slightly worn synchros I would suggest the Redline 75W90NS which will help shifting somewhat. Link to comment Share on other sites More sharing options...
subiemech85 Posted September 5, 2004 Share Posted September 5, 2004 engine oil 0 5 7.5 10 20 25 30 40 50 60 gear oil . . 70 75 77.5 80 85 90 115 140 above numbers in viscosity, resistance to flow, when measured at 100 *C do NOT mix types of gear oil, as severe reactions from the additives may result in the replacement of your transmission, or other areas I recomend you obtain a copy of John Deere "OIL SALES GUIDE" DKE7413 Link to comment Share on other sites More sharing options...
sasquatch Posted September 5, 2004 Share Posted September 5, 2004 That's not stupid at all. Stupid would have been to put the wrong stuff in even though you weren't sure. Link to comment Share on other sites More sharing options...
SubaSkeet Posted September 5, 2004 Author Share Posted September 5, 2004 That's not stupid at all. Stupid would have been to put the wrong stuff in even though you weren't sure. well, im glad i have this board to prevent me from doing even more stupid things Link to comment Share on other sites More sharing options...
Turbone Posted September 5, 2004 Share Posted September 5, 2004 Well I wouldnt go that far. We can tell you what you should do and what not to do, but we cant babysit you But your doing ok so far Link to comment Share on other sites More sharing options...
SubaSkeet Posted September 5, 2004 Author Share Posted September 5, 2004 im pretty sure i can handle an oil change (esp. since ive done it before), just as long as i dont try to do an engine swap or something. im not that crazy...yet. Link to comment Share on other sites More sharing options...
Turbone Posted September 5, 2004 Share Posted September 5, 2004 Well, keeping on topic but going on a small tangent...Whats the census on using the synthetics for trannies and diffs? Or even some of the additives they have out there. I have heard some good things about the additives like Lucas and such. Link to comment Share on other sites More sharing options...
subiemech85 Posted September 5, 2004 Share Posted September 5, 2004 the benefit of synthetics is the extended change interval for OTR trucks, with 100,000 mile change intervals do not use additves, as they are not necessary with a good oil Link to comment Share on other sites More sharing options...
heartless Posted September 6, 2004 Share Posted September 6, 2004 in keeping with the subject - and since I dont have an owners manual to check...what weight gear oil should one use in a tranny in the northern climes...temps will be dropping to the neighborhood of -30 F over the winter.... and how often is it supposed to be changed????? Link to comment Share on other sites More sharing options...
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