had jiffy lube change my rear diff oil ( i know that was a BIG mistake ) they put in 80w90. my repair manual says to use 75w140 .. will i be ok with this 80w90 in a 1999 f150 w/ 3 55 non-ls rear end . or should i change to 75w140 as soon as possible.. i called a local ford dealer here in miami and they said they also use 80w90.. they do not use 75w140 because it does not remove moisture very well .. i do not do any towing and very little heavy hauling thanks for any input
80W90 vs 75W140
- Thread starter MARCUSBEAR
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80W90 is for a Standard Rear-End
75W140 is for the traction lock rear-end
You should be fine
Any kind of towing I would go with the 75w140 but you say you don't so 80w90 should be fine.
[ June 19, 2003, 05:00 PM: Message edited by: jeepzj ]
[ June 19, 2003, 05:00 PM: Message edited by: jeepzj ]
i see redline makes a 75w140ns does anyone have any experience with this product ..i have used redline products in the past with very good results...
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