EV Discussion thread

michaels

https://forums.moneysavingexpert.com/discussion/comment/82026159#Comment_82026159

Interesting. Google says pre 15 leaf and gen 2 leafs have poor 12v charging algorithms whereas the 15 to 17 ones don't have premature 12v issues which explains why ours lasted 8 years and only failed cos we left the lights on. Of our newer leafs we have had a 2019 40 for 4 years without replacing the 12v but perhaps we are just lucky with that one.

JKenH

https://forums.moneysavingexpert.com/discussion/comment/82026206#Comment_82026206

Our 30kWh was February 2017. Your last post crossed with mine so you may not have seen the data I found and sent which is on page 411.

JKenH

https://forums.moneysavingexpert.com/discussion/comment/82026195#Comment_82026195

If the issue is air quality (rather than CO2) then on many of the roads where these speed limits apply (motorways) we are looking at cars with fully warmed up engines running in high gears so the marginal impact on exhaust emissions from a reduction in speed might be minor.

What is, potentially, more significant, though, is emissions from tyre wear.

Pollution From Tyre Wear 1,000 Times Worse Than Exhaust Emissions

“It’s time to consider not just what comes out of a car’s exhaust pipe but particle pollution from tyre and brake wear. Our initial tests reveal that there can be a shocking amount of particle pollution from tyres – 1,000 times worse than emissions from a car’s exhaust. 

“What is even more frightening is that while exhaust emissions have been tightly regulated for many years, tyre wear is totally unregulated – and with the increasing growth in sales of heavier SUVs and battery-powered electric cars, non-exhaust emissions (NEE) are a very serious problem.” 

Press Release: Pollution From Tyre Wear 1,000 Times Worse Than Exhaust Emissions — Emissions Analytics

In practice having different speed limits for EVs to ICE cars is likely to annoy EV drivers as much as an ICE car driver. Imagine, as will almost invariably be the case on a busy motorway there will be someone sitting in the outside lane at an indicated 60mph on the speedo who doesn’t realise the car tailgating is an EV. Or if the driver does realise he may take the view that he doesn’t see why it’s one rule for EVs and one rule for others and just sit there to annoy the EV drivers. And what’s the rule going to be for PHEV drivers?