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Castrol Transmax High mileage ATF

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bmdubya1198
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Re: Castrol Transmax High mileage ATF

Post by bmdubya1198 »

wizechatmgr wrote: Fri Feb 02, 2018 5:04 pm I've used the Transmax import synthetic which is also 3309 compatible... I'm wary of "high mileage" products for the simple fact that occasionally they have additives you may not yet need.
https://www.castrol.com/en_cc/ccsa/prod ... hicle.html
https://msdspds.castrol.com/bpglis/Fusi ... ASHVBS.pdf
I agree, after my cousin used a high mileage oil in his Durango and grenaded a pistion ring then in his S70 and blew a cam seal, I stay away from high mileage fluids/oils. Yes, both of those things would have gone wrong anyway, but the swelling agents and cleaners probably accelerated the failures.
wlkstout wrote: Fri Feb 02, 2018 8:58 pm Not trying to rescue it just clean it up some. Fluid was brown, no pink when i got it. And have had good luck with Maxlife before but that was replaced at Wal-Mart with the castrol stuff. Maybe I'll just use Supertech or Castrol Dex/Merc, whichever is cheaper and call it a day.
Like I said, I use the Castrol Dex/Merc and it's been just fine. I highly recommend it. Also for the price and availability, you can't beat it.
'00 V70R Venetian Red/Charcoal M56 Swapped 200k
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Re: Castrol Transmax High mileage ATF

Post by polskamafia mjl »

Blowing a cam seal has more to do with poor crankcase ventilation than oil quality.
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Re: Castrol Transmax High mileage ATF

Post by bmdubya1198 »

polskamafia mjl wrote: Sat Feb 03, 2018 4:55 pm Blowing a cam seal has more to do with poor crankcase ventilation than oil quality.
That is true, but I don’t think switching to 10w30 high mileage from 0w40 was the best for it.
'00 V70R Venetian Red/Charcoal M56 Swapped 200k
'03 S60 2.4T Silver/Black 118k
'07 XC90 V8 AWD Sport Titanium Grey/Black 174k
'91 944 Turbo Dark Green/Beige 175k
'92 245 Base White/Beige 249k
'99 BMW 528i
'01 Mountaineer 5.0
Sold-
2000 S70 GLT Mystic Silver/Taupe 253k
1993 944 Base Beige/Beige 221k
1998 V70 GLT Black/Beige 199k
1998 S90- Silver/Gray 207k
1995 850 GLT Tropic Green... crushed
2001 S60 2.4T Black/Black 230k
1988 744 Turbo M46 Beige Metallic/Beige 188k
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Re: Castrol Transmax High mileage ATF

Post by jtp »

wizechatmgr wrote: Fri Feb 02, 2018 5:04 pm I've used the Transmax import synthetic which is also 3309 compatible... I'm wary of "high mileage" products for the simple fact that occasionally they have additives you may not yet need.
https://www.castrol.com/en_cc/ccsa/prod ... hicle.html
https://msdspds.castrol.com/bpglis/Fusi ... ASHVBS.pdf
I very much agree when it comes to transmissions. HM engine oil I think can be a different story depending on the situation.

For the 4speed automatics they just want normal, clean fluid. I had one from my last 850 get burnt to a crisp when the trans cooler lines popped off the rad (my fault, not the car’s) and the damaged trans would have lasted forever as long as I kept clean fluid in it. It was amazing.

High mileage trans fluid/addiditives had a noticeable effect for a day or two, but only fresh clean fluid kept it going for 5K miles or so until I needed to change it again.
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Re: Castrol Transmax High mileage ATF

Post by jreed »

At the risk of reviving an old, dead thread, I wanted to add that I have been using Castrol Transmax Dex/Merc for the past 8 years, doing a complete replacement every two years in the summer time by disconnecting the upper transmission hose and removing 12 quarts, four at a time, and refilling four at a time with the new fluid thru the transmission dipstick.
Last week, I switched from Castrol Transmax Dex/Merc to Castrol Transmax High Mileage and the shifting was noticeably smoother. I decided to try switching because the price of the High Mileage was $16/gallon compared to about $24/gallon for the Dex/Merc. I'll see how long the shifting remains smooth, and if there are any problems.
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
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Re: Castrol Transmax High mileage ATF

Post by dyn blin »

I think it's good to revive some these older threads that get buried. Some of us can remember when they started, but there are new users looking for the same answers, or find value in reading them when looking for something else.

I have good luck with both Castrol Transmax HM, and Valvoline MaxLife in the 2 850's and one V70 we've had over the years, although the latter is usually what I find it best priced. The current '97 850 we have is close to 278k miles with the original transmission. I do a drain and fill every other oil change (around 5k) with the MaxLife, but would have no issue using the Castrol if it was consistently at the same price point and rebates I seem to consistently see for the MaxLife.

Our two local Walmarts don't consistently have one or the other in stock, but their website allows anything on their product list to be delivered to a local store within 2 days for pick up.
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Re: Castrol Transmax High mileage ATF

Post by ZionXIX »

I have considered going with the Aisin brand T-IV fluid or the Toyota T-IV stuff.
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Re: Castrol Transmax High mileage ATF

Post by abscate »

I use the Valvoline Dexron VI Synthetic in our one slush box Volvo and our Slush E83 BMW
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Re: Castrol Transmax High mileage ATF

Post by erikv11 »

I use cheap Supertech Dex3 in all my P80 cars. Full flush when I get the car, then 4 qt drain-and-fill every 30k miles.
'95 854 T5-R, Motronic 4.4, 185k
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Re: Castrol Transmax High mileage ATF

Post by GlennG2759 »

I use Castrol Transmax in my '94 850 NA. Drain and fill, doing them every other Oil Change. (10k) takes about 3 & 2/3 qts. Advance auto has it on sale quite often. Good stuff !
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