Description
Practical value and everyday use
Castrol TranSynd 668 Full-Synthetic Automatic Transmission Fluid, 5 Gallon Pail is listed in Transmission Fluids. For a practical buying decision, start with this source-backed point: Shear stability that helps maintain a stable viscosity which provides wear protection in gears throughout the drain interval.
The source also records: TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions / TES 468 is now covered by TranSynd 668. Use this additional stated detail to judge day-to-day usefulness and package value: Product identity: Castrol TranSynd 668 Full-Synthetic Automatic Transmission Fluid, 5 Gallon Pail.
Value-focused decision
Compare those stated features and included items with the current on-page offer and the exact quantity needed. No performance claim is added beyond the source product record.
Complete source-backed product details
TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions.
Source product highlights
About this item
- TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions / TES 468 is now covered by TranSynd 668
- Allows for extended drain intervals of up to 300,000 miles / 48 months in general-duty transmissions and up to 150,000 miles / 48 months in severe-duty transmissions
- 12 times longer drain intervals than conventional and other non-TES 668 and non0-TES 295 fluids
- Shear stability that helps maintain a stable viscosity which provides wear protection in gears throughout the drain interval
- Improved gear protection, extended anti-shudder durability and extended clutch-friction durability
Aspen –
legitdid the double fluid change on my 2019 chevy 2500 since i didn’t know when it was done last or what kind of fluid and it has 126k miles. she shift so SMOOTH now it’s wonderful it makes me so happy that my truck is happy :3also very glad to know that i won’t have to do this again for a very long time with this stuff. 300k fluid change interval is insane lolmy advice tho: get a good pail pump that lists how much fluid per pump so you’re not guessing and having to check the dipstick a buncha times and a long hose so you’re not having to lift a big 5 gallon bucket into your truck’s engine bay lol
Tykhon –
I bought this to do my transmission service on the Allison 1000. Let me tell you I thought I bought way too much initially but ended up using around 2/3 of the pail so this is by far the most efficient method of buying this. The only unfortunate thing is you have to pour it into a separate container to measure it and put it in the truck.
Howard Dinsmore –
Used this in my 2011 Tiffin with Allison 3000 Trans. This is the recommended fluid so I am hoping for trouble free running. Good price for this product.
JOEL C. –
Best oil for Allison HD trans
Customer –
This is sold by evey diesel store online for the alison 1000 transmission. I’m pissed. I’ve used castrol for 30 years. I’d recommend them to anyone… until last week. We talked to castrol over the phone. It was the best for the alison. The newest formula. We called castrol 3 days later to ask if it was okay to use in the transfer case as well… castrol says on the second call ” not only is it not okay to use in the transfer case, but it doesn’t meet the requirements for the alison 1000 transmission either. Now I’m the not so proud owner of a 5 gallon bucket of transmission fluid that isn’t usable and castrol won’t refund exchange or even admit mistake. What crap customer service for a long time favorite company.2004.5 chevy 2500hd lly extended cab 4×4
Miguel –
My rv work good after change the oil transmission
Scott Vincent Allen –
Good value and service.
Dan De Bonis –
Great price and seller. Packaged very well.