Oil & Fuel Changing Trans/Hyd filter but not oil

[Fallon]

Well, I have read that putting a vacuum hose from your shop vac in the fill opening keeps the oil from running out when changing the filter. I have not tried it when changing filters but not the oil. Wont hurt to try it.

I've done it, works great. A helper or tape is often required to keep the hose in place.

 

[hawkeye08]

Spanner, I agree on engine oil, but not on hydraulic oil. I think the manufacturers might know a thing or two about the life of the hydraulic oil.

 

[Mikefromcny]

Shop vac works, just remove its filter or you'll be replacing it.

 

[CalG]

I've used the shop vac to replace temp sensors, and drain plug gaskets. No oil went into the Vac. Lucky I suppose.

For engines it used to be filter were changed every other oil change. now, with "recreational oil changes" people rationalize that the price of a filter is not enough to save the old one. Oh well, times and attitudes change even if filtration does not.

For HST systems, Change the filter, Keep the fluid unless there are "signs". read the signs... they will tell you.

 

[bodin1968]

AMEN......

I'm not sure what you guys are trying to achieve here.

Of the two - (Filter, Oil) the most important to change is the... Oil.

The filter can wait and will handle two, or even three, changes of oil.

It's the oil that wears out. The filter just catches the debris as the worn-out oil causes wear in the hydraulics and transmission.

Change your oil when you need to - and your filter when you can.

Think of your engine - and play this game - You are only allowed to change one thing (Oil or Filter) Would you leave the oil in the sump and just change the filter?

I'd change the oil every time. The filter can wait (But just not forever).

:wrench: