Re: Front And rear Axle Oil Change Reply #25 – June 03, 2017, 12:37:03 am What Happens If You Mix Regular and Synthetic Oil? Quote Selected
Re: Front And rear Axle Oil Change Reply #26 – June 03, 2017, 12:45:25 am I run sentinel lubricants Semi fluid grease #4 in my front hubs full synthetic. Once it's in no more worries with leaking seals and such. Been in there since 2005 no issues. Quote Selected
Re: Front And rear Axle Oil Change Reply #27 – June 03, 2017, 07:19:38 pm Quote from: Travelin' Man – June 03, 2017, 12:37:03 am What Happens If You Mix Regular and Synthetic Oil?If you "routinely" mix oils you may not get the full effects. An oil change is not a routine mix. Otherwise we would have to blow out all of the galley's and bearings, and wipe down the internals to get all of the other oil out. I'm just a 95 %'r I must confess. Quote Selected 2 Likes
Re: Front And rear Axle Oil Change Reply #28 – June 04, 2017, 11:52:36 pm Quote from: wolfe10 – June 01, 2017, 12:22:25 pmI use 80-90 synthetic.And my "method of change" is a bit different, because as craneman said, you can not easily get all the old oil out.I use an old (ya, 50 years old) transmission suction pump through the large fill hole to remove all I can. Overfill with new oil. Drain again. Fill to proper level. Drive it. Next convenient time, repeat. Each "procedure" takes only 4-5 minutes and, unless there is a problem with the bearings (like metal, water or other contaminant in the oil), I am comfortable with the process.Exactly what i do. And also did as a FT tech. Got approval to do it from Nac (back then) Quote Selected 2 Likes
Re: Front And rear Axle Oil Change Reply #29 – June 05, 2017, 10:45:43 am Full syn only . Any blends take on the coking specs of the lowest temp coke point. Quote Selected
Re: Front And rear Axle Oil Change Reply #30 – June 05, 2017, 11:31:47 am Quote from: bbeane – June 03, 2017, 12:45:25 amI run sentinel lubricants Semi fluid grease #4 in my front hubs full synthetic. Once it's in no more worries with leaking seals and such. Been in there since 2005 no issues. Is this the stuff I've seen referred to as "hub oil?" Is it just a question of removing the old lube and adding new or is it required to change parts? Quote Selected
Re: Front And rear Axle Oil Change Reply #31 – June 05, 2017, 11:50:38 am No parts need to be changed unless you have a leaking seal. Quote Selected
Re: Front And rear Axle Oil Change Reply #32 – June 05, 2017, 12:36:48 pm As I understand it the hub needs to be removed and drained and cleaned before synthetic is added if you want 100% synthetic Quote Selected
Re: Front And rear Axle Oil Change Reply #33 – June 05, 2017, 12:46:16 pm Unless someone can convince me to do otherwise I'm going to go with Brett's (wolf10) suggestion on how to change the hub oil using Stump's recommendation of Lucas Hub Oil. Then later if I am concerned about the actual concentration of dino versus synthetic I will change it again in half the synthetic's life.The leak stop feature is the selling point. I don't have a leak, and I don't want one. It's just like using the radiator stop-leak as apreventative measure.According to James at FOT and the appearance of my oil I don't even need to change it, so adding as little as 50% syntheticcan't do anything but good. Quote Selected 1 Likes
Re: Front And rear Axle Oil Change Reply #34 – June 05, 2017, 02:27:16 pm The duty of lubing the front wheel bearings is so easy, it's likely ANY type of oil will work fine. Quote Selected 1 Likes
Re: Front And rear Axle Oil Change Reply #35 – June 05, 2017, 02:59:55 pm I pulled the little drain plug on the hubs and let them drain for over an hour and old stuff was still coming out. Refilled with lucas hub oil (more like cold honey) and its still nice and clean. Used less than half the bottle to totally refill, which took a few refills as it percolated back into the inner bearing. Let it sit an hour before you declare it full. The stuff is so thick it takes time. A "flexible funnel" or form a funnel makes quick work of draining the hubs without making a mess. I learned about it from a youtube howto video and it worked well. Quote Selected
Re: Front And rear Axle Oil Change Reply #36 – June 06, 2017, 11:50:37 am I replaced the 4 gallons of rear differential oil and greased the chassis yesterday. Next time I will be glad to have someone else do the differential - what a mess and I thought my arms would fall off after pumping all that oil. On the other hand, I will never have someone else grease the chassis. Quote Selected
Re: Front And rear Axle Oil Change Reply #37 – June 06, 2017, 01:44:40 pm Quote from: Sven and Kristi – June 06, 2017, 11:50:37 amI replaced the 4 gallons of rear differential oil and greased the chassis yesterday. Next time I will be glad to have someone else do the differential - what a mess and I thought my arms would fall off after pumping all that oil. On the other hand, I will never have someone else grease the chassis.What kind of a pump did you use? Quote Selected