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Synthetic diff lube

yikes

NAXJA Forum User
Location
SE Wisconsin
Would it be ok to put synthetic diff lube in my 1999 XJ after it has had regular lube in it for 95,000 miles D30 frt and Chryco 8.25 rr ? Good idea or bad ?

dave
 
its fine to use it, but why? if you drive off road much and go through deep water and mud alot, its a good thing to check and change your diff oil regularly. no sense spending the extra money if your gonna be changing it once a year or more....
 
synthetic is great for a street car, cause you'll not have to change it for a very long time... but in your jeep, as i said before,, you will wanna be checking it and changing it much more often, so why waste the money.
 
Go with the synthetic It has superior cold flow properties', It's just what you need in Wisconsin.
 
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