Octane and tranny shudder.

[Meeka]

A lot of complaining here about the EcoBoost trannies and the lugging or shudder, me included. A fellow member said to use 93 octane and I poo-pooed it saying how was octane going to affect transmission? So I let my tank get down to just under 1/4 and filled up with 93. Now it may be just psychological or imagination but I swear it helped. It’s still there, but a lot less! Don’t know tho, @ $1.88 per litre, pretty pricey. Retired, 3 pensions, don’t drive much anyway, what the hell! To the member that suggested it, thanks, sorry I doubted you.

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[retiredmike]

A lot of complaining here about the EcoBoost trannies and the lugging or shudder, me included. A fellow member said to use 93 octane and I poo-pooed it saying how was octane going to affect transmission? So I let my tank get down to just under 1/4 and filled up with 93. Now it may be just psychological or imagination but I swear it helped. It’s still there, but a lot less! Don’t know tho, @ $1.88 per litre, pretty pricey. Retired, 3 pensions, don’t drive much anyway, what the hell! To the member that suggested it, thanks, sorry I doubted you.

Good info, that I will try. I now drive in tow/haul mode which solves the problem but sacrifices a small amount of mpg. I think it does it less temps above 40/45.

 

[Burgman]

A lot of complaining here about the EcoBoost trannies and the lugging or shudder, me included. A fellow member said to use 93 octane and I poo-pooed it saying how was octane going to affect transmission? So I let my tank get down to just under 1/4 and filled up with 93. Now it may be just psychological or imagination but I swear it helped. It’s still there, but a lot less! Don’t know tho, @ $1.88 per litre, pretty pricey. Retired, 3 pensions, don’t drive much anyway, what the hell! To the member that suggested it, thanks, sorry I doubted you.

Hi,
I ran two tanks of 93 octane and it did not help my shutter. This issue needs to be addressed by Ford. I am afraid it will limit the life of my tranny. The bad one is econ mode, the vibration seems to be the worse in that mode. Why can’t Ford do a software update selecting sport mode every time you start up instead of normal mode.

 

[Meeka]

Hi,
I ran two tanks of 93 octane and it did not help my shutter. This issue needs to be addressed by Ford. I am afraid it will limit the life of my tranny. The bad one is econ mode, the vibration seems to be the worse in that mode. Why can’t Ford do a software update selecting sport mode every time you start up instead of normal mode.

I’m with you on the software update, Ford has it for everything else, why not the TCU?

 

[Boosted]

A lot of complaining here about the EcoBoost trannies and the lugging or shudder, me included. A fellow member said to use 93 octane and I poo-pooed it saying how was octane going to affect transmission? So I let my tank get down to just under 1/4 and filled up with 93. Now it may be just psychological or imagination but I swear it helped. It’s still there, but a lot less! Don’t know tho, @ $1.88 per litre, pretty pricey. Retired, 3 pensions, don’t drive much anyway, what the hell! To the member that suggested it, thanks, sorry I doubted you.

I ran 93 since my first refill. get your Dealer to do a transmission flush and add BG Product for the Trans. It did wonders for me. I took mine to my local Ford dealer to do it with 12k miles on it. I would do it as early as possible and efinitely not past 60000 miles. If you have more miles, then just do a drain and refill and add the BG product to it because it has friction additives.

One issue with the 8 speed because the filter is an internal metal screen filter so the only way to remove and clean the filter is to split the trans case, and that would be too expensive. If you flush your transmission early, it's okay to do and that would help things tremendously especially with BG additive. The reason you don't want to do it later. Is you lose friction material over time on your clutch plates? And when you do a flush, you wash that material out of the transfluorid, which is where it goes when you lose it off the clutch plate. So then you will have transmission slipping. Add it to your series of problems. At that point, just drain and refill with fresh fluid and add BG.

Back to the topic with 93 octane: if your vehicle is in a proper state of tune you will have transmission shutter. I'm running Brisk RR-14S one step colder spark plugs from Summit Racing gapped at .026 so I never had shudder like some of you. I did have some indecisive shifts that felt more like slippage than shutter. between 2nd t0 3rd, 3rd to 4th gear at medium light throttle input. BG Trans Flush worked. The 93 octane just helps ensure better fuel quality, better Ignition timing as your ECU will adjust more Ignition advance. My fuel mileage went up when i'm not running it hard.

It's never gonna hurt to run quality fuel and fluids. Keep a clean air cleaner as well. I've got a whole nother story on a dirty air cleaner and fouled. Spark plugs that a person almost put a transmission in their vehicle, because of. It was literally at the dealership, and they were ready to pay fourteen hundred bucks way back when and I had them take it off the lift and let me look it over. .I bought a clean air filter 4 new spark plugs and clean their air cleaner housing out. ran carb cleaner through it. Then change the plugs. No Trans rebuild needed. OK, all you whiners say all you like about this lol, it's all yours, I said what I had to say.. haha

 

[22_Mich_Mav]

Posted this earlier on another topic. I’m driving a 22 XL Eco Awd 4k. I’ve had the same issue since day one and gave up trying to fix. When cold the truck would hesitate/buck/jerk. Tried taking to dealer several times and always ntf.

Recently I had a new issue (see pic) where my outside temp showed 127 degrees when it was 10. Heat set at 85 would blow cold. The dealer replaced the ambient temp sensor (inside fender liner) and after that my cold start/hesitate/buck/jerk problems disappeared.

Could be coincidence. Never changed trans fluid always run 87 octane..Just my two cents…

 

[AlsMaverick]

If I don't use 93 octane my ENGINE lugs when the transmission is in a higher gear than needed for the speed.
If I ever have a TRANSMISSION lug I'll fix the transmission or dump the vehicle.
Uh. transmissions do not lug. ;-)

 

[Meeka]

If I don't use 93 octane my ENGINE lugs when the transmission is in a higher gear than needed for the speed.
If I ever have a TRANSMISSION lug I'll fix the transmission or dump the vehicle.
Uh. transmissions do not lug. ;-)

Okay, “Shudder” then, not “Lug”. 🥱

 

[Meeka]

I ran 93 since my first refill. get your Dealer to do a transmission flush and add BG Product for the Trans. It did wonders for me. I took mine to my local Ford dealer to do it with 12k miles on it. I would do it as early as possible and efinitely not past 60000 miles. If you have more miles, then just do a drain and refill and add the BG product to it because it has friction additives.

One issue with the 8 speed because the filter is an internal metal screen filter so the only way to remove and clean the filter is to split the trans case, and that would be too expensive. If you flush your transmission early, it's okay to do and that would help things tremendously especially with BG additive. The reason you don't want to do it later. Is you lose friction material over time on your clutch plates? And when you do a flush, you wash that material out of the transfluorid, which is where it goes when you lose it off the clutch plate. So then you will have transmission slipping. Add it to your series of problems. At that point, just drain and refill with fresh fluid and add BG.

Back to the topic with 93 octane: if your vehicle is in a proper state of tune you will have transmission shutter. I'm running Brisk RR-14S one step colder spark plugs from Summit Racing gapped at .026 so I never had shudder like some of you. I did have some indecisive shifts that felt more like slippage than shutter. between 2nd t0 3rd, 3rd to 4th gear at medium light throttle input. BG Trans Flush worked. The 93 octane just helps ensure better fuel quality, better Ignition timing as your ECU will adjust more Ignition advance. My fuel mileage went up when i'm not running it hard.

It's never gonna hurt to run quality fuel and fluids. Keep a clean air cleaner as well. I've got a whole nother story on a dirty air cleaner and fouled. Spark plugs that a person almost put a transmission in their vehicle, because of. It was literally at the dealership, and they were ready to pay fourteen hundred bucks way back when and I had them take it off the lift and let me look it over. .I bought a clean air filter 4 new spark plugs and clean their air cleaner housing out. ran carb cleaner through it. Then change the plugs. No Trans rebuild needed. OK, all you whiners say all you like about this lol, it's all yours, I said what I had to say.. haha

What is this BG product you speak of please.

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