is synthetic ATF any good?

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Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Originally posted by: boggsie
This is what you are looking for.
Awesome. :)

Figured something like that would exist.

I wonder if you could just adapt an AMSOil bypass filter to do the job. Mmm.. 0.1 micron filtration. :)
 

Vette73

Lifer
Jul 5, 2000
21,503
9
0
Also just in case some don't know. Ford always had Trans problems with a lot of their big cars, so they came up with a new trans standard. Its called Mercron V (V = 5). Really the same as Mercron/Dexron 3, but it is a semi-syn trans fluid. I use it in my buick. A lot cheaper than full Syn's but has some better traits than reg. trans fluid.

Of course people that have new fords don't seem to understand why their trans service for their ford cost a lot more than their GM car.

Also something I do for pizza drivers, taxi's, etc.. is drill a hole in the trans pain and put a drain plug. I live in the hot and humiad south, so the fluid breaks down well before the filter needs to be changed. So this way I can do a drain and fill on their trans and hold off doing the filter. Now make sure you change the filter as stated in the owners manual, it is important.
 

Pepsi90919

Lifer
Oct 9, 1999
25,162
1
81
Originally posted by: Millennium
Originally posted by: Eli
Originally posted by: Millennium
Originally posted by: Eli
I would use AMSOil's synthetic ATF fluids. Too lazy to compare their prices to Redlines.

IMO, price it isn't such a big deal as with engine oil since you don't change your tranny fluid nearly as often.

I would go all out and use synthetic and an ATF cooler. :)

Do they make ATF filters?

Umm... yeah.
Were you answering my ATF filter question?

I've never seen one, but I've never looked, so I was just asking.

I know that many AT's have a screen at the pickup tube, but that's not what I meant by filter.. I meant a filter a'la an engine oil filter.

Yes, I was answering your question. Any Auto I have ever changed the fluid on had both a screen and filter. The screen is just for the larger particles. The filter is the lifesaver of any auto that sees stress or consistent driving.

The break-in period on my lentech is 100 miles. After a hundred miles you drain it, flush the whole system(including the cooler), new filter and fluid.

never changed the fluid on a honda, or old hyundai/mitsubishi?
 

Mill

Lifer
Oct 10, 1999
28,558
3
81
Originally posted by: Pepsi90919
Originally posted by: Millennium
Originally posted by: Eli
Originally posted by: Millennium
Originally posted by: Eli
I would use AMSOil's synthetic ATF fluids. Too lazy to compare their prices to Redlines.

IMO, price it isn't such a big deal as with engine oil since you don't change your tranny fluid nearly as often.

I would go all out and use synthetic and an ATF cooler. :)

Do they make ATF filters?

Umm... yeah.
Were you answering my ATF filter question?

I've never seen one, but I've never looked, so I was just asking.

I know that many AT's have a screen at the pickup tube, but that's not what I meant by filter.. I meant a filter a'la an engine oil filter.

Yes, I was answering your question. Any Auto I have ever changed the fluid on had both a screen and filter. The screen is just for the larger particles. The filter is the lifesaver of any auto that sees stress or consistent driving.

The break-in period on my lentech is 100 miles. After a hundred miles you drain it, flush the whole system(including the cooler), new filter and fluid.

never changed the fluid on a honda, or old hyundai/mitsubishi?

Nope. Are they different?
 

toph99

Diamond Member
Aug 25, 2000
5,505
0
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hondas just have screens in their AT's from what i remember, no actual filter. Hyundai's use a different kind of tranny fluid too, from what i remember(not the standard dexron III/mercon)

I'm going to be changing my tranny fluid to mercon V this summer hopefully(93 crown vic). I was told by a ford tech to be wary of using synthetic ATF's because it can move the shift points seeing as how it flows much better than regular ATF
 

cavemanmoron

Lifer
Mar 13, 2001
13,664
28
91
Originally posted by: Insane3D
Originally posted by: Eli
Originally posted by: Insane3D
A good deal of manual transmissions these days take ATF. The trusty old Borg Warner T-5 in my Mustang takes ATF, and I have been using Mobil 1 for years. Mobil 1 in the engine, tranny, and differential. :)
Really?

I thought most manual transmissions used(for example) 75W-90 gear lube...

ATF seems pretty damn thin to be used in a manual... :Q

It depends. It seems that most OD manual trannies take ATF. Some of the older types take the 75W-90 gear lube. In the case of the T-5 in the Mustangs, they take ATF as specified by Ford. If I am not mistaken, even the newer ones with the T-45 (I think) take ATF. :)




The same hardworking protection found in Mobil 1 motor oil is also available in a gear lubricant, and the benefits of superb protection and extended component life are equally valid.

Mobil 1 Synthetic Gear Lubricant protects and extends the life of automotive gears, rear axles and differentials. It's extra tough, Indy-500 certified and exceeds the most severe requirements for all automobile and truck rear axles.

Benefits:

Minimizes wear to prolong gear life.
Offers the highest resistance to breakdown from heat and high-speed operation.
Makes manual gearshifts easier and faster to operate.
Improves fuel economy.

Applications: It is suitable for year-round service down to -50° F.

Product Data Sheet



http://www.mobil1.com/index.jsp
 

OS

Lifer
Oct 11, 1999
15,581
1
76
Is it a problem if I mix synthetic ATF with the original stuff? I'm probably going to do a lazy drain/fill for now. I'm leaning towards mobil 1 ATF cause it's easy to find.
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Originally posted by: OS
Is it a problem if I mix synthetic ATF with the original stuff? I'm probably going to do a lazy drain/fill for now. I'm leaning towards mobil 1 ATF cause it's easy to find.
They should be 100% compatible, but of course it isn't going to be as good as pure synthetic.
 

OS

Lifer
Oct 11, 1999
15,581
1
76
Originally posted by: Eli
Originally posted by: boggsie
This is what you are looking for.
Awesome. :)

Figured something like that would exist.

I wonder if you could just adapt an AMSOil bypass filter to do the job. Mmm.. 0.1 micron filtration. :)

It just occurred to me, if you add an inline filter, will the transmission's internal pump be able to still flow the same rate through the tranny cooler?