How do you like the eAssist?

Darmichar · October 11, 2018

On 1/30/2018 at 1:06 AM, austingta said:

eAssist was California only, and 2wd only at that. Has that changed?

Yes. I live in Central Illinois and my dealer had 2 2018's with the eAssist when I bought mine.

Bigjoe1972 · October 11, 2018

I have a 2018 2X4 LT eAssist (355hp) Silverado and just passed 3,200 miles. Purchased in June 2018. I have noticed the "bumpy" sort of surging when backing up as well. It is intermittent and because of other comments I knew to expect it. I also notice drive line "clunking" as well from time to time when shifting from Park to Reverse or Reverse to Drive. Not a hard clunk but.....noticeable.

Gas mileage has been interesting. We drive around the city most of the time (San Francisco) and if we use a whole tank of gas on city driving only.....we get about 14mpg on average. Not what I expected with an eAssist. However....if we go on a long drive (SF to Tahoe and back) we get about 24-27mpg and that is a big improvement over my 2003 Silverado I replaced.

I think the majority of fuel savings for me is the eAssist motor kicking in to assist and keep the active fuel management in V4 mode for longer time (or preventing V8 mode shift return altogether under light acceleration) when on the free way.

I love the truck, huge improvement over the 2003 LS and kids dig the extra room with the crew cab. Enjoy the thread as well. Keep the comments/updates/experience coming.

boydpettitt · October 19, 2018

^{Just purchased a 2018 with easiest. I am fimular with it as I had worked on electric vehicle programs previous to my retirement several years ago. First off, you can turn it off if you don't like it. I travel a lot and wanted the mileage. I bought the 2WD crew cab. 8 speed. My first 2WD in many a year, but just don't need it for anything. I am loving my fuel economy. I can get 25mpg (calculated) being conservative as I drive, but doing the speed limit. I drove many electric vehicles for several years as the technology was being tested, so I know how to drive. I am averaging 22mpg hwy and city. I don't mind the start/stop feature at all.}

^{I am loving this so far, will see how it goes but works good for me with the 3;08 and 8 speed.}

TXGREEK · October 19, 2018

Sent from above

DirtyAndy · October 19, 2018

I’ve had my 2018 e-Assist for almost 2 months. Bought it with 3,200 miles. It now has about 5,800. Mine does the surging in reverse as well. I don’t notice the start/stop since my 2017 Malibu has it. Just change your habits a bit and it’s not noticeable. I drive two footed, so I tap the gas before I need to romp on it. Or throw it in L for your quick stops.

I notice mine you can tell when it’s in gear from park and I’m totally cool with it. It’s a truck. Not a luxury vehicle. I want to know I put it in gear.

$/$/$ · December 1, 2018

On 10/19/2018 at 7:30 AM, boydpettitt said:

^{Just purchased a 2018 with easiest. I am fimular with it as I had worked on electric vehicle programs previous to my retirement several years ago. First off, you can turn it off if you don't like it. I travel a lot and wanted the mileage. I bought the 2WD crew cab. 8 speed. My first 2WD in many a year, but just don't need it for anything. I am loving my fuel economy. I can get 25mpg (calculated) being conservative as I drive, but doing the speed limit. I drove many electric vehicles for several years as the technology was being tested, so I know how to drive. I am averaging 22mpg hwy and city. I don't mind the start/stop feature at all.}

^{I am loving this so far, will see how it goes but works good for me with the 3;08 and 8 speed.}

I love mine, bought it in July, 19 in the city and 25 mpg on highway

$/$/$ · December 1, 2018

On 10/19/2018 at 7:30 AM, boydpettitt said:

^{Just purchased a 2018 with easiest. I am fimular with it as I had worked on electric vehicle programs previous to my retirement several years ago. First off, you can turn it off if you don't like it. I travel a lot and wanted the mileage. I bought the 2WD crew cab. 8 speed. My first 2WD in many a year, but just don't need it for anything. I am loving my fuel economy. I can get 25mpg (calculated) being conservative as I drive, but doing the speed limit. I drove many electric vehicles for several years as the technology was being tested, so I know how to drive. I am averaging 22mpg hwy and city. I don't mind the start/stop feature at all.}

^{I am loving this so far, will see how it goes but works good for me with the 3;08 and 8 speed.}

$/$/$ · December 1, 2018

I bought mine in July and loving it! 19 mpg in city at 25-30 mph, 24- 26 mpg on hwy...eassist covered for 100,000 hardly ever notice it restarting, got a good deal when purchasing.

TXGREEK · December 3, 2018

I bought mine in July and loving it! 19 mpg in city at 25-30 mph, 24- 26 mpg on hwy...eassist covered for 100,000 hardly ever notice it restarting, got a good deal when purchasing.

Ummm, you running on natural gas there?

$/$/$ · December 3, 2018

9 hours ago, TXGREEK said:

Ummm, you running on natural gas there?

Mid grade, on regular gets a tad less

TXGREEK · December 3, 2018

Mid grade, on regular gets a tad less

That’s about where my 2028 CC Z71 6.2 was before the bigger heavier tires and a lift kit, 18-19mpg highway now, thanks to the SuperChips Tuner. I only run Super [emoji39]

lukester01 · March 28, 2019

I like the e-assist a lot. I had a 2007 Avalanche and went to a 2018 silverado. The engine auto stop was a thunk at first, and was annoying, but 5000 miles now and I cannot barely feel it restart. Not sure if I'm. Just so used to it that I don't notice it, but I swear even focusing on it that it is now barely a shake.

The system makes the truck a rocket. It has so much torque when the electric motor kicks in. I can accelerate at highways speeds to pass or get up to speed easy (unlike the under powered, overweight Avalanche.

On a side note. If you have a older 5.3, reprogramming with a superchips unlocked power and best of all way more aggressive shifting.

3tspapat · March 28, 2019

I'm on the fence with mine due to the lack of performance mods support. It seems no one wants to put any money and time into figuring out the programming. Instead just say it CAN'T BE DONE...complete BS. This includes tuners and performance parts manufacturers. Made me modify a CAI to work and also use L7 to get rid of AFM and Start/Stop since Range won't provide support for the L8B. Other than this...I think it's great. Haven't had much issues with the truck...power is sufficient if I drive it right. If I putt putt around then I do notice that the truck will get lazy and now downshift like it want it to, so I just blip the pedal...or use tow/haul mode.

Anyone have the brakes swapped on the eAssists? Is everything the same still? If I can't better my 0-100 mph time, then the only thing left is to better my 100-0 mph time.

Captainmc · April 24, 2019

I bought the 2018 4x4 Silverado crew cab with eassist. I have mixed feelings. I’m not really sure how the eassist helps with power or torque. The auto stop/start feature is nice if you live in an area where you’re waiting at traffic lights frequently. Kinda sucks if you live where you’re not in traffic much. Seems like it should have at least 3 seconds or more before it shuts off? It’s ridiculous to shut off when you’re just stopping at a four way stop etc. I think the auto start/stop on eassist is better than other brands that use the starter. It just instantly whirs back on.

I do believe eassist helps mileage. I currently got 21.5 mpg on a road trip with a couple hundred pounds of stuff in the bed and I actually checked it at the pump, not relying on the computer which always says you’re getting better mpg than actual. I did notice on a trip when towing my small camp trailer I was getting 13 mpg. I towed the same trailer on the same route in my 2015 Yukon and it only got 9 mpg. Yukon has the same gen 5.3. The option to jumpstart yourself is pretty cool. Except my trailer light was left on and totally drained my battery, if your battery is completely dead you can’t access the info screen to activate the jumpstart feature. I do notice that the 8speed transmission is very clunky, bumpy and shifts rough, but I’ve read that it’s like that in a lot of the trucks without the eassist. Another thing is that I don’t notice it as much when truck goes to v4 mode...I don’t get the lagging sound and lugging like in my Yukon and the regular Silverado I test drove. GM says the eassist helps the truck to stay in V4 mode longer. Only time will tell...not sure what it’s going to be like when the batteries or other components need service or replacing? Probably expensive??

Check out the MPG ratings...kinda strange that it gets less MPG than the standard 5.3 with the 6 speed...but it gets better than the standard 5.3 with the 8 speed.

If I could go back I probably wouldn’t have got the eassist.

Not sure if it’s worth it since I’m not seeing a significant fuel mileage increase. I do have to say that it tows amazing and hwy driving is amazing as well. Driving around town...not so nice. Clunky, surging, shifting hard and rough. Engine shutting off when stopped for a second.

Edited April 24, 2019 by Captainmc
Grammar

prtsguru · September 4, 2019

I love my Eassist, I have a 2017 silverado ccsb4wd Lt Eassist, awesome economy, towing power. A head turner, even in the cold it works awesome. I would definitely buy another one, if GM ever fixs the look on the new trucks [hate the fenders and wheel wells}]