New VW Golf 1.5 TSI - 2019 8th Gen VW Golf Forum
 
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post #1 of 8 (permalink) Old 03-21-2018, 11:23 AM Thread Starter
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New VW Golf 1.5 TSI

Volkswagen has just introduced a new petrol model to the Golf lineup, that claims to get the same fuel efficiency as a diesel, but at a cheaper price. The new VW Golf 1.5 TSI Bluemotion is powered by a 128hp version of their 1.5 liter TSI engine. The powertrain features an a cylinder management system, which shuts down unused cylinders when possible for increased fuel economy. It also features an eco coasting function when paired with the optional 7 speed tranny. Deemed a "micro hybrid" this new model sees a combined 70mpg when fitted with the seven speed transmission.
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post #2 of 8 (permalink) Old 03-22-2018, 11:27 AM
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It's good to see that VW is doubling down on petrol powertrains, and those are some pretty impressive fuel economy numbers. I was wondering when this sort of tech, which has been in pickups for years, was going to make its way to smaller vehicles. Hopefully that optional 7 speed tranny doesn't increase the price by too much.
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post #3 of 8 (permalink) Old 03-26-2018, 01:54 AM
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I wonder if Mazda is to partially thank on this because they were one of the first car makers to release highly efficient gasoline engines. Skyactive engines are no joke. Just shows the potential in those setups during a time everyone is into hybrids.
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post #4 of 8 (permalink) Old 03-27-2018, 11:02 AM Thread Starter
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Yeah and I know that Mazda has recently claimed that their newest Skyactive engines actually run cleaner than an electric. But I think that has more to do with how electricity is actually generated. Mazda is one company that doesn't seem to be in a rush to join the EV segment.
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post #5 of 8 (permalink) Old 03-27-2018, 04:58 PM
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Quote:
Originally Posted by SirPhil View Post
Yeah and I know that Mazda has recently claimed that their newest Skyactive engines actually run cleaner than an electric. But I think that has more to do with how electricity is actually generated. Mazda is one company that doesn't seem to be in a rush to join the EV segment.
Well the changes to how electric power is generated will take a while to improve to more efficient methods, for now brands like Mazda have the real solution as its happen right away and is measurable.
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post #6 of 8 (permalink) Old 03-28-2018, 10:53 AM
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I hate it when they showcase new efficient technology, that's restricted behind optional transmissions which cost extra. Do we know how exactly this eco coasting function works? Is it similar to cruise control?
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post #7 of 8 (permalink) Old 04-03-2018, 11:05 AM Thread Starter
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The eco coasting feature will only work on speeds up to 81mph, and completely shuts off the engine once the driver takes their foot off the accelerator. All of the electrical systems will continue to work as there’s a lithium-ion battery providing the necessary juice to power everything else.
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post #8 of 8 (permalink) Old 04-11-2018, 11:11 AM
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When you do something like that without the eco coasting feature, it's pretty much engine braking is it not? Similar idea, but the lost energy in deceleration is not reused compared to VW's system. Handy since I frequently coast when there's a red light in the distance.
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