My answer to that is off-course the car is working fine because I regularly change fluids. I hopped on the internet forums to discuss this and got more people saying that I should not bother replacing transmission fluid. This doesn’t make sense to me.
然后有一天我遇到了这个Youtube 视频that explained it really well:
So what does he recommends? I learned from this that it’s crucial to change the transmission fluid periodically. But, if your car is a high mileage vehicle (think 94k miles or 150,000 km), and is still running on factory-filled transmission oil, you are better off just leaving it alone.
Fresh transmission fluid has good cleaning properties. This can wash away varnish from the clutch pack, causing clutch slippage. While Flushing the transmission with a machine can damage aging seals, which can cause leakage and hydraulic problems.
You might take chances with transmission oil change but don’t flush the system. If no problems crop up after oil change, then congratulations you have increased the life of your transmission. But a lot can go wrong if you change the transmission oil of a high mileage engine. Let’s see why:
Transmission oil is really thin so that it can move around the crevices of the automatic transmission. As the oil gets old, it becomes thicker and becomes less slippery. Sometimes this extra friction from the old oil is what keeps the clutch working properly. The problem arises when a fresh trans fluid is added to the worn out transmission- The clutch might start slipping or the car might refuse to shift out of gear.
如果您继续前进，倒了新鲜的油，现在您的离合器正在滑动。在这种情况下，您该怎么办？好吧，您可以尝试使用变速箱添加剂来防止离合器滑动。许多力学推荐Lucas transmission fix添加剂。
However, it’s best to change transmission oil at around every 50,000 miles (80,000 km). If you regularly do this that you won’t have to wonder if changing transmission oil next time will cause trouble.
Several vehicles nowadays come with lifetime transmission fluid that the company says doesn’t need replacement. But, that’s not really your best choice if you do intend to keep the car for a long time. Car manufacturers usually do to comply with the environmental norms and to show that their cars are low maintenance.
When you want to change the transmission fluid,您有两种选择 - 完整的冲洗或液体变化。
Fluid change means there will be some percentage of old fluid remaining in the gearbox unit (sometimes up to 50%) but flush ensures that every part of gearbox gets rid of old oil. So, what’s better for you?
As a general rule,如果您怀疑过去没有很好地维护变速箱，那么最好只是改变流体而不要打扰潮红。That’s because flushing the transmission increases the chance of some gunk getting stuck in the narrow oil channels. And it can even damage the aging rubber seals.
但是，如果您定期维护汽车，则冲洗是一个更好的选择，因为它消除了几乎所有的旧变速器油。How much does transmission oil change cost?
What Transmission oil should you use?
Different transmission fluid has different base material and additives. Using the recommended transmission oil would mean that the transmission is compatible with it as it’s been tested using this oil.
Another video by Scotty Kilmer:
Is it bad to change transmission fluid on high mileage cars?
Changing transmission oil for the first time on high mileage (over 100k miles) car can cause issues. There is a risk of encountering clutch slippage or getting the car stuck in one gear.
Transmission oil change is draining the old oil from the drain bolt and refilling with new oil. In Flush, a machine is used to push out all the remaining old oil before pouring in fresh oil. Go for the Flushing method only if you regularly change the transmission oil. On high mileage cars, it can damage the transmission.
How much Transmission Fluid Change Costs
A third-party repair shop usually charges between $90 to $150 for a transmission oil change. An authorized dealer would be charging $150 to $250.
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