| Author |
Message |
andy
Rating: N/A
Votes: 0 (Vote!) | | Posted on Saturday, October 08, 2005 - 8:46 pm: | |
how hard is it to change the oil & filters on a allison ht754cr tranny & does it pay to use the transend or stick with dexron? also ,how often with normal highway use? thanks |
Ed Jewett (Kristinsgrandpa)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 09, 2005 - 12:26 am: | |
www.allisontransmissions.com
Maintenanace schedules, fluid types etc.
Ed |
Earl-8-Ky
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 09, 2005 - 10:20 am: | |
I have a Allison 740 in my bus and I use Quaker State Dexron III in it. Quaker State was the only oil I found that was lisated for C4 Allison. My oil pan does not have a drain plug in it. The fiest time I changed the oil I removed the pan. I just changed it just the other day and I used a electric fuel pump to get the oil out I used a piece of tubing and put it down the filler pipe to remove the oil. I know there was a small amount that I did not get out but I didn't have to remove the pan. It would work better if the oil was warm. |
Ed Roelle (Ed_roelle)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Sunday, October 09, 2005 - 10:31 am: | |
I recently investigated transynd extensively.
For HT 740/754, you probably do not need it, IF, you keep the trans temperatures down. It is more desireable if you have a retarder, where temperatures will be hotter.
The world transmissions, 4060 and B500, are more likely to need the synthetic. For those, with a retarder, you definetely should consider it.
Detroit dealers sell it for about $30 a gallon.
Ed Roelle
Flint, MI |
Johnny
Rating: N/A
Votes: 0 (Vote!) | | Posted on Monday, October 10, 2005 - 8:39 pm: | |
I've never seen a Dexron ATF recently that WASN'T listed as suitable for Allisons. |
bruce knee (Bruceknee)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, October 11, 2005 - 4:41 pm: | |
Is it OK to use dextron 2? I don't think they made dextron 3 in 1984 when the bus was made, if so, I don't remember ever seeing it |
Buswarrior (Buswarrior)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Thursday, October 13, 2005 - 10:04 pm: | |
Hello.
The anecdotal stories I've heard from those with tranny temp gauges are that changing out to synthetic, an HT 740 will show 10 degrees Farenheit cooler.
Since it's heat that kills trannies, the added expence of synthetic sure seems cheaper than a rebuild.
Also, Amsoil has a similiar synthetic transmission juice for less than Allison.
Follow the path that is appealing to you!
happy coaching!
buswarrior |
John MC9
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 14, 2005 - 1:45 am: | |
Of course.....
The heat it does not remove from the metal (by nature of the
lubricant used), could be detrimental to the product in question.
I'd use what the manufacturer recommends.... |
Marc Bourget
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, October 14, 2005 - 5:49 am: | |
John,
Im not following your point.
Since trannys don't consume fuel directly, and synthetic has virtually the same physical heat capacity as regular oils, I feel the heat generated comes from internal friction - which the synthetic oil does a better job of reducing.
Most of the busses we convert were designed before synthetics were in popular use. What's the current recommendations is a more relevant question, wouldn't you think? |