I've done some google searches and forum searches in the past re this issue but found no adverse comments. However, I recently read the manual (you know, if all else fails). It states that the automatic 5 speed should be in "S" mode (manual shift) and no higher than 4th should be selected when towing (the manual must also be driven no higher than 4th gear).
However, I find the reasons intriguing. The book says it's because of reduced engine braking and alternator output. Really ? If that's the only reason I'd be happy to keep towing in overdrive. I've had no charging issues on 5 hour tows and the van brakes are pretty strong, I don't really need that tiny bit of additional engine braking. Fourth becomes annoyingly noisy after a while and the fuel consumption considerably worse.
Does anyone know of "mechanical" issues as to why you shouldn't town in top gear on the 150 ? IE Gearbox failures or related ? I'm towing 2.5 tonne (well under the 3 door limit).
However, I find the reasons intriguing. The book says it's because of reduced engine braking and alternator output. Really ? If that's the only reason I'd be happy to keep towing in overdrive. I've had no charging issues on 5 hour tows and the van brakes are pretty strong, I don't really need that tiny bit of additional engine braking. Fourth becomes annoyingly noisy after a while and the fuel consumption considerably worse.
Does anyone know of "mechanical" issues as to why you shouldn't town in top gear on the 150 ? IE Gearbox failures or related ? I'm towing 2.5 tonne (well under the 3 door limit).
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