COPIED from Fb post of Nayyar Sb on Pakwheels Hybrid Car Community.
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Copied below.
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"" Atf DW 1 .... Ultra vs Saada
Aoa all. As u all know we all Vezelers have this 1 question in our minds, ATF dw1 saada dalwaein ya Ultra? I would like to present my own study.
I have a habit of monitoring transmission temperatures esp on ling drive. Over the weekend i travelled 1000 km from M5, to M4 to M2. And i came back on Monday.
While going, i had a one year and 30,000 Km old atf dw1 ultra in my vezel. Started on M5 on sukkur around 2:30 pm. Outside temp was 43 - 46 degrees. I stayed on cruise at 110 kmph. Transmission temp stayed at around 89 - 92 degrees. Whenever i would rev up the vezel to more than 140 or 150 Kmph, the temperature would gradually increase to 104 degrees. I would then resort back to cruise speed and it would go down to 91 degrees.
In Rawalpindi, i Changed the transmission oil as it was due. And i put in the SAADA WALA INDONESIAN ATF DW1. All is working fine but on motorway, the story goes like...
On monday, i started on m2 at 2 o clock, the outside temperature at islamabad was around 44 degrees and all across till M4 stayed between 42 - 44 degrees. Transmission temperature was definitely high. Normal 110kmph cruise control lead to a temperature of 99 - 102 degrees. Acceleration would suddenly cause the temperature to go up. So much so thag it even reached 113 degrees at one time. Only after sunset was i able to keep the transmission under 100 degrees. When i took namaz break, it went to 87 degrees buy otherwise, it stayed above 95 degrees....
I think that we shud use ATF DW1 Ultra. Although i have the screenshot of email in which honda says that ATF dw 1 is same but in my opinion, Ultra is a better make. It controls temperature better. I would still do some more testing. This is my input and would love to have ur feedback. ""