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Fuels & Lubricants Discussion all about Fuels & Lubricants. synthetic oil, conventional oil, brands, change intervals, diesel grades, gelling and such debated items like that. Non TDI related postings will be moved or removed. This forum is NOT for the discussion of biodiesel and other alternative fuels.

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Old January 13th, 2019, 13:23   #1
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Matt-98AHU's Avatar
Join Date: Apr 2006
Location: Vallejo, CA
Default Red Line MT-LV gear oil

I stumbled across a new Red Line gear oil, and it's lighter weight than even the MTL. It's closer to the consistency of the OE VW gear oil, G060 726 A2 and G070. They call it a 70/75w. Also of note is the numerous modern VW gear oil part numbers they say it cross references to, which they did not say about the MT90 or MTL gear oils.

Here's the list straight from Red Line's website on oil compatibility:

VW/Audi G 052 512 A2
VW/Audi G 052 527 A2
VW/Audi G 070 726 A2
VW/Audi G 052 515 A2
VW/Audi G 060 726 A2
VW/Audi G 052 171 A1
VW/Audi G 052 171 A2
VW/Audi G 052 798 A2
VW/Audi G 055 725 A2
VW/Audi G 052 726 A2
VW/Audi G 052 178 A2
There are numerous other numbers for other brands it references, but I'm only copying the VW/Audi stuff here.

This has part numbers that cross reference to both 02A/02J and newer 5 speeds as well as 02M and up 6 speed transverse transaxles.

I was never happy with how MTL or MT90 felt in VW transaxles, especially in cold weather. But, the last couple years I have been using their Shockproof superlight with great success blended with either OEM or Valvoline MTF Synchromesh. I've had a couple transmissions that were difficult to get into a couple gears or were occasionally grinding a gear easily and it makes an immediate improvement and continues to get better and better the longer it's driven. Very impressed with it.

Now they have their own light weight gear oil you can use as is or if you have a particularly difficult transmission, mixing it with Shockproof to see if you can net some improvement is certainly worth a shot before condemning the box for a rebuild.

Currently have a customer's car running this mix and have been very happy with how it drives. Will likely switch one of my own 5 speeds to the mix and see how it goes. Or if the transmission is already in good operating order and shifts easily, straight MT-LV ought to work quite well.
Sole Proprietor, Diesel Autowerks in San Anselmo, CA. One man operation, email is preferred method of contact: email me with inquiries for service.
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Old January 16th, 2019, 06:16   #2
Join Date: May 2017
Location: Montreal, Qc

Sounds like something beneficial for me having to deal with very cold temps (-10c to -15c on an average morning) during the winter months here in Canada, some mornings my clutch pedal feels like I'm pushing through molasses and that's with g070 only 15,000 kms old. Does the thinner viscosity of the mt-lv still hold up during the summer when temps are much warmer? I thought people were already criticizing g070 for being too thin and not offering enough protection when hot and to stick with 52 or 60 if possible.
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Old February 19th, 2019, 01:34   #3
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Join Date: Oct 2014
Location: NorCal

Do you think it would be a good idea to mix the Shockproof Superlight with the MT-LV @ 50/50 ?
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Old February 19th, 2019, 07:14   #4
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Location: maine

I don't see why there would be any problem blending the red line mtl fluids. I may give the new LV a shot in my 0A4-kqm 5-speed that has an annoying gear rollover tick in neutral.
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