jcjr

Hello All,

I have a 2001 AWD. Getting ready to do drain and fill of tranny fluid...My last drain and fill was with Toyota IV fluid....

After reading many threads here I am thinking of switching to synthetic...

Is "standard" Mobil 1 ATF compatible with Toyota Type IV?

I Know 3309 is but it is harder to find...

Thanks for the help.

P.S. I assume that the mixing of Toyota and new synthetic fluid which will occur is of no harm?

GSteg

iTrader: (15)

Why not just remove all the oem fluid and pump in new synthetic? If you're going to do a normal drain and refill, I would just use Toyota T-IV/Mobil 3309.

hypervish

No regular mobil 1 atf is not compatible with toyota type-iv. This is what you need if you want to get mobil 1 atf : http://www.mobiloil.com/USA-English/...hicle_ATF.aspx or the 3309.

I suggest Castrol Multi-Vehicle Import ATF. I have that in my RX right now, and it shifts perfectly. It's also a synthetic blend.

jcjr

Thx Hypervish,

Saw the Castrol at Walmart but was unaware it was a synthetic....You obviously favor the castrol over the Totota fluid

lexus114

X 2 ^^^ on what he said re; the Castrol multi import fluid.

jcjr

Thanks for the imput guys...
I am going to use the Castrol Fluid since i can get it at Wally World nearbuy...

powerslide

Got me a little worried reading this post. I have been using Mobil 1 full syn. for multi-vehicles in my 2001 RX for 2 years now. No problems. Got 115,000 miles. I just looked on the back of the bottle and it says it is approved for Toyota T-IV types. But your link says otherwise. Hmmm. Should i drain it ASAP and refill with 3309. I mean if it is listed on the back of the bottle it should be ok. Right?

powerslide

I just posted a question on the Mobil 1 website link Hyper posted. Asked them the same thing. Will post the reply. I went to the FAQ on that site and someone asked the same question and they said it would work. So we will see. You got me worried. A good thing. thanks, i need to be sure.

Lexmex

Mobil 1 ATF works fine. When I was still in Mexico 2002-2008, that ATF did not list a Type IV compatibility (but now it does), but I did use it and still use it as power steering fluid. Currently am using Redline D4 for my ATF. Actually plan to do a drain and fill in the next week or so once the fluid arrives.

powerslide

Thanks Lexmex. I thought springs were going to start falling out of my trans.
I know i had researched it to be sure it was ok at the time. But this made me stop and think.

hypervish

I said regular Mobil 1 transmission oil will not work, but they have special Mobil 1 Full Synthetic Transmission oil for Import Vehicles. That's the only bottle that lists Toyota Type-IV.

The oil I'm not talking about isn't on their website, or it looks different than the picture of the bottle they have on the website. Either way they have the same name.

powerslide

Thanks Hypervish

njatl

I think the Mobil 1 ATF most people in the forum talking about is "Mobil 1 Synthetic ATF".
I check the spec of 2 ATF on Mobil 1 website. I really can't find big difference between them, can you? Neither mentions Toyota T-IV.

Mobil 1 Synthetic ATF:
http://www.mobiloil.com/USA-English/...etic_ATF.aspx#
Mobil 1 Synthetic ATF meets or exceeds the requirements of:
JASO 1-A
Ford MERCON® V

According to ExxonMobil, Mobil 1 Synthetic ATF is of the following quality level:
Allison C4
GM DEXRON® IIIH
GM DEXRON® IIIG
GM DEXRON® IIE
GM DEXRON® IID
GM DEXRON® II
GM DEXRON®
Ford MERCON®
Voith H55.6335.3X
MAN 339 V1
Volvo 97340
Volvo 97341

Mobil Multi-Vehicle ATF
http://www.mobiloil.com/USA-English/...icle_ATF.aspx#
Mobil Multi-Vehicle ATF has the following builder approvals:
Ford MERCON® V
It meets or exceeds the requirements of:
Voith H55.6335.3X
MAN 339 V1
According to ExxonMobil, Mobil Multi-Vehicle ATF is of the following quality level:
Allison C4
GM DEXRON® IIIH
GM DEXRON® IIIG
GM DEXRON® IIE
GM DEXRON® IID
GM DEXRON® II
GM DEXRON®
Ford MERCON®
JASO 1-A
Volvo 97340
Volvo 97341

Mobil Multi-Vehicle ATF is not recommended for applications requiring Ford MERCON® LV, MERCON® SP or GM DEXRON® VI.

njatl

OK, I just found this on Mobil website. I hope it could help!

http://www.mobiloil.com/USA-English/...smissions.aspx

Answer:
ExxonMobil stands behind its automatic transmission fluids, and both Mobil 1 Synthetic ATF and Mobil Multi-Vehicle ATF are suitable for use in Toyota applications where Toyota T-IV type product is recommended. However, the Toyota/Lexus ATF is specifically designed for those vehicles and will provide optimum performance. It is difficult to say whether you would ever feel or see the difference in performance, but the Mobil products will not damage your transmission.