About a year ago, I wanted to replace the so-called lifetime ATF in my 2012 C30's AW55/50. 75,000 miles. I did a few drain and fills using the Volvo owners manual requirements of type 3309 ATF. (Aisin type IV).
But recently I found out, that Volvo upgraded to Aisin type WS after VIN 220000! Which my 2012 is. Its in their VIDA software, but not the printed owners manuals. (Go figure) I also read that the WS is a thinner fluid, but is STILL not synthetic.
So I decided to go with Redline D6 synthetic, which they claim will work for Aisin type WS. I also figured how to disconnect the trans cooler line, so I actually did a three gallon flush. I just don't trust a thin mineral-based ATF like Aisin WS running at temps of 85C/185F (that's what VIDA says my trans is running at for normal driving)
i also added 6oz of auto rx to my previous 3309 fluid and ran for 4000 miles. Couldn't believe how dirty the fluid looked when I pumped it out. Now I have nice pink synthetic fluid. Will flush again in 30,000 miles. THIS is how you do lifetime fluid. (yes, I reset Trans counter too)
anybody else try redline D6? Long term results?
C30 ATF
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BlackBrick
- Posts: 31
- Joined: 10 September 2018
- Year and Model: 1997 850R
- Location: Washington
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