sirenebekim

www.liquidvac.com


I just ordered one of these, does anyone else use this technique? It's 65 bucks delivered, which is about $240 less than what the dealer wants to prob do the same thing...

Does the dealer use the suction method or the oil plug method?

RES

I use one but it looks different, same idea. The new version like mine will do both oil and bleed brakes.

sirenebekim

do you have a link to where I can see the newer version of yours?

RES

http://www.performanceproducts.com/p...Evacuator+Plus

epj1906

I have a model with a 6 gallong tank from Harbor Freight. Works the same except that I don't have to hand pump it, just hook it to my Sears Air Compressor and it's done in 5 minutes.

bmwm3e46

are there any disadvantages to using these pumps compared to the standard jack up the car and pull the oil drain plug?

Vivid

I think I would rather drain from the bottom. That pump thing will not get all of the oil out like draining through the plug on the oil pan. There will be dirty oil left in the pan.

wizkid

I have experimented with several oil evacuation systems and have never been able to pull out more than 8.25 quarts of oil from the oil pan.

It is safer never to crawl under something heavy though.

RES

Do you really thing you get all of the dirty oil out by draining it from the bottom? There are area's in the engine where the oil settles when the engine is off that you will not be able to get it out without pulling off the valve cover, front cover, and etc. So if you think by getting those last drops out your saving your engine. Myself I will sit back pump a couple of times drink my beer and then change my filter and fill it back up. If you want to put the car on ramps, pull off the belly pan, have that first bit of oil run down your arm, go right ahead. I like my beer to much

H-townbenzoboy

Mercedes-Benz has found the dipstick extraction method removes more oil than the conventional drain plug method. You ought not worry about getting all the oil out however, no matter what method you use there's going to be a quart or two of oil left in all the little passages, nooks and crannies of the engine, that's the way they were designed. The most important thing is for you to get most of the old oil out and replace it with fresh oil. In fact, since the mid 70's, their engines have been designed to drain oil out of the dipstick tube. If you don't believe me, just extract the oil with a unit like a LiquiVac or MityVac, and then undo the drain plug. No oil will come out. If you're using Mobil 1 or another good MB approved oil, you shouldn't have to worry about junk left in the bottom of your pan, all dirt should be in the oil or in the filter. If you do have junk left in the bottom of your pan, that means your engine has been abused.

wizkid

Do you really think you get all of the dirty oil out by sucking? Maybe I need to drop the oil pan bottom and let all of us see what the heck is inside of that baby. You have my curiosity peaked now.

Also, you don't drop the pan, just unscrew the plug. I rarely ever get oil on me.

Of course, I have a lift now. But yeah, I use to use Rhino ramps.

RES

Your not the only one with a lift you know. But I was refering to the cover over the bottom of the engine that every German car has that you have to lower to get to the drain plug. My 88 mercedes has access but my Porsche and the new Mercedes are covered. Plus again your missing the beer factor! In Germany after you work all day and you have to go home and it's time to change the oil in your car there must be beer involved. Thats the rules, if you can't play by the rules, you can't own a Mercedes. Mercedes will come and take your car away! Oh since you don't change the sysnthetic oil on aircraft turbine engine but every five or six thousand hours, i think we might be ok. And then there is beer!

wizkid

I think that makes us snotty nosed MB brothers.

Got ya on the belly pain comment. You had me concerned for a moment.

sirenebekim

I would say that pumping out the liquid through the oil dip stick area is better because it allows you to change your oil more often. At least with myself, I know that I will change the oil alot more often if i just didn't have to crawl under the car, etc etc...

RES

Yes, but do you have not one, but two keg frig's in your shop. LOL Long story!

wizkid

One problem with that. If you use a plastic or plastic like hose sucker and your car is very hot, it will start to warp and pieces will flake off. I had it happen to me with the MVP TopSide, to the point I was pretty freaked out.

I went to the West Marine and picked up a 6 qt. ( I believe it is 6 qt.) sucker and it works great but you still have to watch those hot temps, better than the MVP Topsider which IMHO sucks.

I just couldn't pull in and suck it out, I had to let it cool for a while but not get cold. I guess that was my other problem besides not getting all the oil out. I felt like I had a window to get the oil changed in.

When I drain, I get 8.5 qts. back out. When I suck, I can only get 8.25 at best. But then, I may not have the gift and mine is a hand pump.

mleskovar

I drain it from the plug because I like to look at everything underneath the car. I also periodically remove the bottom engine cover just to look. I think there is more residual oil left by the vacuum method than the drain plug method but it's too minor to make a difference. As a side note....if you don't first remove the oil filter, or let air in from the top by loosening the filter nut, the oil trapped in the filter housing doesn't drain.

sirenebekim

good point thanks mleskovar where is the cheapest filters for our cars?

Buellwinkle

Here's one reason for you to never drain it from the drain plug. Over time the threads in the aluminum around the drainplug wear and start leaking like on our SLK. Dealer wants about $900 to replace the oil pan. If you do it from above, a) you don't get dirty, b) you do just as good a job, c) looking at the top of the engine is just as much fun as the bottom.

alex007mayn

like the red bull guys says, "it's Brilliant", plus i won't have to put my beer down to change my oil now

mleskovar

Sounds like it was overtightened once or twice. We're not talking about a high use part here so it didn't happen from repetition. An SA told me the reason they even keep the drain plug is because some world locations don't have access to a vacuum system.

mleskovar

Online....shop around but make sure it's extended life.

prometheus

If you are concerned with the drain plug, you can replace it with a Fumoto drain valve. Once its installed, you don't remove it, simply open the valve to drain the oil. I've got one on my Dodge and its one of the best purchases I've made for it, maintenance wise.

wizkid

NAPA It is the same filter MB uses but a lot cheaper. Sames goes for the air filters on my C240.

Also, that was a good point about pulling your filter first. I did that last time and a whole quart stayed behind. Wow! Pulled the filter and bamo, oil rushed out of the plug. Very eye opening.

mleskovar

[QUOTE=prometheus;1941925] Fumoto drain valve. [QUOTE]

Thanks for the link....sure makes sense