Allison says the fluid is good for 100,000 miles.
How many miles is an Allison Transmission good for?
Like toypuller said, on a 100% stock motor, and when properly maintained they seem to pretty much last indefinitely. If you severely overpower it, you can kill it within 100 miles if you want.
Should you flush an Allison Transmission?
Changing the fluid on an Allison transmission is not the same as changing the fluid in a regular car or truck. The system is more prone to metal chard and debris getting into the transmission. Only flushing the fluid will rid the system of all the old transmission fluid and debris that is caught up in the transmission.
How do you know when its time to change transmission fluid?
Transmission fluid should be replaced every 30 to 60 thousand miles, or in accordance with your vehicle’s manufacturer’s recommendations. If you smell a sweet, burning odor, it could be related to your transmission fluid.
How many miles can a Duramax last?
A poorly-maintained engine can quickly fall into disrepair before it even reaches the 100,000-mile mark while a well-maintained Duramax pickup truck should last 400,000 or even 500,000 miles.
How much HP can a Duramax handle?
Factory 6.6L Duramax engines will make 300 to 397 flywheel horsepower depending on the model. Virtually any model can be bumped up to around 600 hp (about 480 rwhp) with simple computer tuning, provided that the turbocharger and fuel system are in good working order.
Do all 8.1 have Allison?
In the LT trim trucks the Allison was standard equipment behind the 8.1L engine. NO Chevrolet or GMC pick-up truck was ever built with an 8.1L engine, and the 4L80/4L85E transmission. If you chose a pick-up truck with the standard 6.0L gas engine it would come with a 5-speed manual as standard equipment.
How do you know if you need transmission flush?
When to Flush: 4 Most Common Signs of a Troubled Transmission
- Grinding and Strange Noise. When a transmission becomes bogged down with dirt, grease and other debris it may begin to show signs similar to that of low transmission fluid levels. …
- Hard to Shift Gears. …
- Slipping Gears. …
- Vehicle Surge.
Is it better to flush or drain transmission fluid?
Proponents of transmission flushes will often argue that a flush is a better service because it replaces more of your transmission fluid. It’s true that removing your transmission pan or draining your transmission via its drain plug (as your car manufacturer intends) only removes about 70% of the fluid inside.
Why you should never change transmission fluid?
If you don’t change your transmission fluid frequently, the dirty fluid will not serve as an effective lubricant and it won’t disperse heat well. This will cause wear and tear on the clutches and other parts of your transmission.
Is it really necessary to change transmission fluid?
You should definitely change it at the recommended mileage regardless of whether you have a manual or an automatic transmission. Manual: Most manufacturers recommend that manual transmission fluid be changed every 30,000 to 60,000 miles. … The typical service interval is 60,000 to 100,000 miles.
Should I change transmission fluid if it’s never been changed?
If it’s bright pink-the fluid is new. No need to change it. If it’s light brown with a hint of pink-It needs to be replaced. If it hasn’t been changed in a long time-it will be very dark brown.