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Old 03-26-2018, 03:09 PM   #31 (permalink)
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Originally Posted by UFO View Post
There are many reasons for the manual to proscribe rolling with the engine off, not all of them having to do with actually damaging the transmission. My opinion, FWIW, is this is more of a safety issue with towing. Does anyone actually observe the speed limit for towing a U-Haul trailer?
Sure, towing has some impact on the driving dynamics that should not be neglected. Anyway, even though an American would be more likely to tow with a beefier vehicle such as a truck or body-on-frame SUV which usually has brakes better dimensioned for such use, in most of other countries you can see regular econoboxes towing sometimes in excess of their GVWR

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Old 03-28-2018, 11:52 PM   #32 (permalink)
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Originally Posted by ksa8907 View Post
Lol, because the mtg said so? I mean, they're only engineers who happened to also design the car so, I guess they don't know what they're talking about....

Likely, the residual oil in the bearings is enough to lubricate adequately UP TO 50 km OR UP TO 50km/hr. Longer distances and higher speeds will run through that residual oil and once gone will cause excessive friction and wear/scoring/gouging on the bearings.

This is one of those times where ymmv. Good luck, not worth the effort and small money saved in my opinion.
Hmm, iikhod seems to disagree with you here. Thoughts?

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If EOC at those speeds would harm your gearbox, probably would have broken something by now.
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Old 03-29-2018, 12:29 AM   #33 (permalink)
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Originally Posted by cRiPpLe_rOoStEr View Post
Those older manual transmissions rely more on splash lube than pressurized lube, so at least in theory EOC or towing above 80km/h shouldn't do any harm.
That really depends on whether the splash lubrication depends on the gears driven by the engine to splash up the oil. It will vary lots from one gearbox to another, and the manufacturers generally know best.
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Old 03-29-2018, 02:59 PM   #34 (permalink)
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That really depends on whether the splash lubrication depends on the gears driven by the engine to splash up the oil. It will vary lots from one gearbox to another, and the manufacturers generally know best.
Sure, but those older transmissions usually don't rely on the engine to provide that oil splash. Newer ones on the other hand, especially since 6-speeds started taking over the 5-speeds, are more critical on that regard.
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Old 03-29-2018, 10:24 PM   #35 (permalink)
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Originally Posted by cRiPpLe_rOoStEr View Post
Sure, but those older transmissions usually don't rely on the engine to provide that oil splash. Newer ones on the other hand, especially since 6-speeds started taking over the 5-speeds, are more critical on that regard.
Ah that's what I was suspecting as well.
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Old 03-30-2018, 12:26 AM   #36 (permalink)
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Some companies such as Remco Industries provide auxiliary lube pumps to prevent transmission damage while flat-towing, and AFAIK there is no such pump available for use in the 5-speed transmission fitted to the Golf. They claim it's safe to flat tow at up to 65MPH according to the manual, but don't give further details.

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