![]() ![]() This would be with the engine idling and shifter in neutral. Personally I think that the fluid should be changed around 60000 km (40k miles) to 100000 km (60k miles) depending on driving conditions and how the fluid looks like.One way to do it would be to actually disconnect the lines to the oil cooler and let the oil drain into a container while refilling at the same rate as it's draining until the color achieves the same as the new fluid. on a CVT you do not need to remove the pan. Removing the pan does not get but a tiny amount more that is in the pan. I have seen dudes on YT use the internal pump to change out the fluid on a CVT.but when you are done you will need to make sure it is at the right level by removing the fill plug when it is up to operating temp (Subaru has a procedure for that) or do you all subscribe to the theory that it can't hurt and any introduced new fluid is a help.Īlso how much more fluid is drained by dropping the pan. so is there a cut off point where you would say it's not worth it. I assume 50 % would still be a good result. 75% percentage replacemnet would still be great (but again not going to happen in the real world). ![]() For example, if the drain and fill method replaces 100% of the fluid (which I know it doesn't) then you have a perfect result. I'm still kinda hanging out for an answer to my basic question, so I'll try asking once more before I stop boring y'all I'd basically like to know at what point (if any) is it a waste of time draining and filling. I will not drop the pan on the '14 CVT, I will drop it on the 03 since it will by that time need a filter change, which is only accusable by removing the pan. next drain and fill will be in the spring and that is when I will drop the pan and change the filter as well. I have followed the drain and fill every 30K on my 03 Subaru and it runs just fine with 130K on it. How much more fluid is drained by doing that extra step. or do you subscribe to the theory that it can't hurt and any introduced new fluid is a help.Īlso in your reply you mentioned dropping the pan. ![]() I'd basically like to know at what point (if any) is it a waste of time draining and filling. because that was the main point of my original post. I assume from your informative reply that you are happy with the amount of new fluid that is delivered by the drain and fill method. I am an admitted skeptic of the "never needs changing" mantra, but I'm not convinced that a "relatively small" addition of "new fluid" is going to make a heap of difference to the health of my CVT. Maybe for the DIYer's on the forum then that would lower the financial burden, but for the average joe (me included) who goes to the dealer for most services, I don't really see the value in a fluid change if, as some reports I have read, as little as 1/3rd of the fluid is all that is replaced. I know some of the replies might be that the procedure could be repeated several times to achieve a higher "fluid changeover" figure, but I'm not sure that the high cost of the CVT fluid would justify the multiple changes. My question is specifically related to the benefits (if any) of doing a fluid change (as against a "flush") if the result is only plus or minus 50% (or less) of the "old" fluid is removed and replaced by the "new." I'm not wanting to discuss whether a fluid change should be done on the CVT or not, because that has been done to death already. ![]()
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