Rover 45 MPG Test - SHOCK RESULTS! - E5 Fuel Compared To E10.

I’ve been running tank to tank tests of E5/E10 petrol, I’m amazed at the mpg of my 1.4 Rover 45

[@AgathaAndAnything]

Working out useage vs fuel prices on the day it would actually be cheaper to always use super unleaded as although more expensive to fill the extra miles per gallon would offset it.

[@leelee1973la]

The Jaaaaag (2.5 Auto, all wheel drive) is cheaper to run on E5. Okay, I didnt buy a Jaaaag to worry too much about fuel economy, but the difference is noticeable, especially on a run. Trip computer recorded up to 45.8 MPG on E5.... 38.4 on E10 on the same journey... which was my house, to my parents house on the Welsh border with a mix of motorway and country roads, cruise control set at 70 on the motorway. I've never really noticed any difference in performance on either fuel... So, the results as in the video are no surprise to me 👍

[@AgathaAndAnything]

I think the biggest surprise is a 21 year old petrol car does better mpg than a lot of modern ones with all the filtration systems on, example Heather’s Kia Diesel best we had 62mph cruise on 53mpg, running it to work and back mid 40’s which is poor. Doing the maths confirms even though more expensive E5 is actually the best option

[@cutnrun22]

I find it takes about 2-3 tanks for the ecu to totally adjust to e5, and get max mpg. Im sticking to e5👍

[@AgathaAndAnything]

I do 1 e10 very occasionally since the test but mostly e5

[@RobsonRoverRepair]

The K series doesn't have a knock sensor therefore doesn't retard fuel in the same fashion as many other modern engines. It's why you will never see a mpg or power increase on a K series beyond 95ron as it simply can't adjust the ignition on the fly, however you will definitely feel better detonation and smoothness with higher Ron petrol.

[@PoshcatsCamping]

Wow that’s certainly proved a point. The Rover has proven what a smart little car it still is, even though it may look tired against more modern looking cars in the 2022 lineup 😃 Interesting experiment 👍🏻 Trev

[@AgathaAndAnything]

I actually think it’s a fantastic result for a 21 year old car as some modern ones struggle to get that mpg. I quite like old cars though I’d call it character over tired looking 😂

[@PoshcatsCamping]

@@AgathaAndAnything I agree Rick. Sadly I missed my favourite classic car show last weekend due to family commitments. There’s always next year 😃

[@paultaylor9652]

Lovely Jubbly, not a boring car at all, more intesting than a lot modern cars. My 1.2 petrol turbo Peugeot averaged 58.9 mpg on a recent holiday in Yorkshire, so I'd be well pleased with 46 mpg on a car with its technology and age.

[@AgathaAndAnything]

I’m happy at 42 although maths says 46 works out cheaper even though it’s dearer per litre

[@Godlyhank]

46 to the gallon is nearly a 10% rise. and the super costs roughly about 4-8% more depending what prices and standards, esso supreme 99+ is actually 0% ethanol despite having the E5 stickier (search it up its on the esso website)

[@philallin5071]

I reckon your Rover is 8-10% more economical on the E5 juice. My local fuel station sells E5 at 6.5% more than E10 so it's got to be a no brainer to use E5 all the time. There is a small cost saving of about 2% and no worries about possible issues with ethanol eating away at the rubber parts of the fuel system.

[@AgathaAndAnything]

Yep Heather’s done the maths too and said more expensive is actually cheaper! I’ll use this tank of E10 and use super after that.

[@tonyjesshope6861]

Just came upon your story E5 v E10. I did a similar test in my Toyota Aygo and got a similar difference, about 8/10% improvement in mpg with E5. As the cost difference at the pumps is similar, the cost per mpg is almost exactly the same. My figures were 52/57 mpg.

[@AgathaAndAnything]

I’m just using E10 more often than not now

[@scottishcarenthusiastsandtrain]

Great little experiment and 42mpg is pretty good going. Mostly use E10 in the Citroen and the Family Skoda through its maybe in my head when I fill either car with E5 they do seem a bit perkier!

[@AgathaAndAnything]

I can’t say I noticed the performance but Heather’s worked out it’s actually cheaper to use super unleaded

[@scottishcarenthusiastsandtrain]

@@AgathaAndAnything One thing I like about the Skoda is that you can drop a small amount of petrol into the vapour tank and fill again, there's a little nipple which you catch with the fuel pump nozzle and you can get a little bit extra in, sometimes we find the first bar of fuel can last 200 miles if driven economical, I usually use it for going on holiday can walk away with a 500+ tank....

[@jaggass]

I mostly run my Corolla on E10 but found it runs much better on E5. On a side note you can still get 4 star petrol from a garage near Bristol.

[@TK42138]

I've been doing a long term fuel economy test on our 2004 Peugeot 206 1.1 - Tank to tank fill up, stopping at first click of the pump, same garage (car is used as a commuter hack and does the same route - mostly A14, some motorway at 65-70mph then couple of miles of urban traffic) 26 mile round trip. 48.7mpg when we first bought it six years ago running it on normal E5 Unleaded. 42.3 mpg on E10 - it got so bad I checked for dragging brakes, tyre pressures, filters, exhaust back pressure but nothing wrong with car itself. 48.8 to 50mpg on E5 Super. More expensive to buy per litre but cheaper to run overall when fuel economy on E5 is factored in - so long as the price per litre doesn't increase.

[@AgathaAndAnything]

Yep I’m now on super all the time as you say saves about £3 overall based on what extra miles I get even though the fill up costs more, benefits also that E5 is less harmful to the rubbers

[@fenderac3049]

You're getting the same results as I got with my MGTF, I'm getting far more mpg on the new higher octane E5, than on the previous E5 octane, plus the car goes much better performance wise than it did on the lower octane E5. I haven't tried E10 as it's not recommended.

[@AgathaAndAnything]

I’m doing e5 most of the time now although a wallet busting £84 yesterday was a shocker

[@willswheels283]

Great vid Rick and an interesting subject, yes when I had my Rover 200 auto 1.6 I found it did more to the gallon on E5 than E10, on E5 it did an average 40mpg on a run and 33mpg around town and on E10 it did 38mpg on a run and 30 around town, so a bit of a difference. Your lucky you have a fuel light in yours as I didn’t have one in either the 200 or the MGF I had, just had to fuel in when the needle hit the red. Thanks again mate, looking forwards to the next one.👍

[@AgathaAndAnything]

It was more that the mpg was so good on E10 really I know E5 is better

[@AdamJames-dl4hh]

An extra say 3mpg per trip a day x that by 28 days 3 x 28 =84 mpg extra over the span of a typical month

[@doktoruzo]

Interesting video fella. That's a decent mpg from an old car. Interesting that you get better mpg from Super...worth the extra initial expense plus one would think that it is better for the car. Nice one.

[@AgathaAndAnything]

Yep E5 will actually work out cheaper according to the maths

[@sgraham15]

Over 20 gallons a year saving and better combustion cleaner engine easy one that ,but I have been a super unleaded user for years on my bikes and cars .I know a riding school and they swapped to shell advanced and got better economy 👍🏻👍🏻

[@stephenwestley1017]

E10 is less volatile so the bang is less so so you need to rev higher the higher the revs the more fuel is used so you would get more mpg with super unleaded

[@AgathaAndAnything]

Yep I’m aware I was more surprised at 42mpg on e10

[@gefleigh4264]

Extra price is worth paying,your cars rubber parts will benefit.

[@frothe42]

E10 you will always get worse mileage due to the alcohol added. 46 mpg is very good, as well as 42 mpg. I also agree if you can go further on a tank of more expensive petrol, and you figured out all the costs, than E5 is more economical. Now, who has the most expensive petrol; BP, Shell, etc.?

[@AgathaAndAnything]

I use supermarket cheap stuff! I’ve no idea what’s expensive probably Shell? I’m happy at 42mpg

[@frothe42]

@@AgathaAndAnything Our problem is that most petrol stations where I live in upstate New York have E10, with one local station (Stewart's, it is like a BP Market) has ethanol free premium petrol. And we have had E10 for quite a number of years, as well as having mandatory catalysts since 1975. Fuel prices are dropping here as well, but what you pay amounts to extortion!

[@comicmania2008]

I pick my new car up tomorrow morning. It's a new Toyota Aygo X, it's just a 1L 3cyl 72bhp, and I've bought it because I wanted better fuel economy, they're stating 59mpg - we'll see. Funny enough, I was going to try that exact same experiment as you did there, it's coming with a full tank already, so I won't worry for a bit! But been getting around 41 MPG on my old 16 yo Audi A3 1.6FSI on E10, (when I drive it like a saint that is 😂), would have been nice to see if E5 was any better!

[@AgathaAndAnything]

We’re getting rid of the Kia Venga (diesel) the mpg on it is mid 40’s running around and low 50’s on a run, probably one of the least economic Diesel engines we’ve had, going to a Vauxhall Crossland 1.2 petrol 3cyl turbo which is supposed on paper to be better, still being built though should be late this year early 2023.

[@comicmania2008]

@@AgathaAndAnything one doesn't need a fast car in the UK, only a car that's reasonably reliable that makes good use of fuel. I'm retired now, can't afford a big gas guzzler anyway. I'll pay less road tax and insurance on my new car, and less lightly to get a speeding fine 😂

[@sbrader97]

@AgathaAndAnything Those 1.2 psa engines got belt in oil the 1st vauxhalls that had them fitted are now having engine failures and low oil pressure due to the belt material breaking down and blocking the oil pickup so now im put off any modern vauxhall thats using those engines until they change it to timing chains or normal belts though they are meant to be using newer belt materials thats less prone to failure now but it will still eventually happen if you dont replace the belt in time. Had a ford 1.0 ecoboost with the same problem with the belt being in oil stupid design flaw its a massive expensive job to change the belt

[@AgathaAndAnything]

Plans changed anyway Venga stays

[@andyelliott8027]

I've got a 2007 Subaru Impreza and I only use E5, I don't trust E10 not to damage the car. It's not about miles per gallon with me but just using the better fuel. Even with E5 I only get around 26/27 to the gallon.

[@AgathaAndAnything]

If I was running a performance car I’d be the same.

[@johnmoruzzi7236]

You'd have to do it properly with a proper fuel supplier BP Esso Shell etc and the same garage more or less so you know the supply refinery is the same. Saincurys and other supermarkets will be less fussy and more variable in quality and performance.

[@AgathaAndAnything]

It was a quick test really but taught me enough, I was quite surprised the video did so well really 😊

[@johnmoruzzi7236]

@@AgathaAndAnything It is bad if it’s true… for years lots of programmes and magazines did comparisons of 95 vs 98 and concluded that it made no difference for most cars. Then the fuel companies promoted their high octane stuff as premium with added cleaning etc. that fixes your car. Now it seems the “standard” fuel has genuinely got worse…

[@sgraham15]

Well said 👏🏼 👌

[@danpullin6610]

I'm doing this exact thing with my Piaggio Fly 125 scooter, seeing if E5 is worth it on Mpg and the extra cost,

[@AgathaAndAnything]

It’s also the fact that E5 is probably better for the engine

[@TOMLINBISH]

E10 is an eco-con like loads of other greenwashing stuff! 🙄🤬

[@AgathaAndAnything]

Yep agree

[@a11csc]

i always use e5 and the mileage is well better

[@AgathaAndAnything]

Agreed it’s purely how good it was on E10

[@jaggass]

You must get in touch with Hubnut. He'd probably love to review the 45. It's right up his street.

[@daveconyard8946]

Nice One, Thanks 👍

[@AgathaAndAnything]

My pleasure thanks for watching

[@aciddiver1978]

Here in Norway, the price is 2,5 pounds....

[@Car_and_classic_lover]

Very interesting! Great MPG as well. 👍

[@AgathaAndAnything]

I was happy at 42 on e10

[@ifai2176]

Always E5

[@metalman4141]

“ Boring old Rover “ oh dear surely not .

[@AgathaAndAnything]

😂 well it’s certainly not on everyone’s fantasy garage list ha!

[@garyburchgb]

I've got an old 2000 polo, it runs terribly on E10, down on power (hesitation when pulling away) and cuts out randomly. Having to use Wynn's E10 protector on every full up. Works out at an extra 3.5p per litre. With this I don't find any real difference between e10 and e5.

[@AgathaAndAnything]

I guess it’s whatever suits, I tend to use E5 a lot but occasionally if I’m not as flush it has E10!

[@garyburchgb]

@@AgathaAndAnything it's good that the rover is running ok on E10 and getting good economy still. Quite astonishing really!. I picked up the Polo recently for £550 so it'll keep me going providing I use the addictive.

[@AgathaAndAnything]

Can’t fault it, just flew through the mot too

[@garyburchgb]

@@AgathaAndAnything happy days

[@conorf8091]

Getting Tesco 99 with club card points will always be king. Forget using E10 with redex or shell v power at its stupid prices. 10 litres of fuel is 5p back. I know it’s daft but it adds up…

[@badbooks476]

Excellent, interesting experiment & great mpg! Shows the Rover is running like new. We are in Germany on hols & E5 is only 5 Eurocents dearer than E10, so another UK rip off

[@AgathaAndAnything]

Even at the difference in price here it still works out cheaper to run on the more expensive fuel (according to Heather’s maths)

[@badbooks476]

@@AgathaAndAnything I have not worked out mpg on the mx5 & mk2 Polo, but keep to Super as they are not used daily

[@petergeorgedirector4]

Do you not realise that E10 is the one with more ethanol in it, so it should be CHEAPER? E5 is the better fuel because it contains a greater proportion of the more efficient component and less of the potentially destructive component (ethanol). Why are people so confused about this?

[@badbooks476]

@@petergeorgedirector4 Sorry, I wrote it the wrong way round, thanks for noticing & now corrected

[@petergeorgedirector4]

@@badbooks476 Thank you!

[@terryatkinson3182]

Think I'm too tight to buy the dearer petrol for my cinquecentos...

[@AgathaAndAnything]

It seems to feel that way to me but working out the maths the more expensive is actually better

[@jaggass]

You must do a comparison of E5 Vs E10 on Agatha

[@AgathaAndAnything]

It would take ages to use a tank of fuel is the issue

[@petergeorgedirector4]

You said "going from E5 to E10". You weren't. You were going from E10 (higher proportion of ethanol) to E5 (lower proportion of ethanol)..

[@pauljoey6334]

I drive a puma hybrid and no way Will I willingly use e10 ..it makes it sound like a bag of crap.and that's before we talk about economy..pay the extra because you get more miles , so you win in the end, I hate filling up..why would you want go do more often

[@davewright7512]

That difference could be you perhaps had a lighter foot that month (maybe not on purpose) or just less traffic? You get what I mean, if it really does use that much less then it’s good but probably not worth the extra? I guess you’d need to work out the difference in price and the fuel saved, 42.1 is pretty good for a medium sized 20 year old petrol car though!

[@AgathaAndAnything]

The maths suggests using super actually works out cheaper

[@davewright7512]

@@AgathaAndAnything hmmm I wonder if it’s the same for super duper diesel?

[@AgathaAndAnything]

I’m not trying that 😂

[@davewright7512]

@@AgathaAndAnything give me one good reason why not?! 🤣

[@RickandHeather]

@@davewright7512 I could use this one for diesel but last fill was £120 as it is 😂

[@rectify2003]

I do deliveries in a 2001 VW Golf 1.4 16 v , so I am not sure which to use. Photos I took yesterday are Super+ 99 = £171.9 Unleaded = £157.9 So to be honest I am not sure what to use now. Any advice please?

[@AgathaAndAnything]

Without knowing exactly what the mpg difference is on your car between the 2 it’s difficult, all I know is at around 12p a litre maximum difference it works out cheaper for me to use super. If those were price differences by me and with my car I’d be using the cheaper

[@rectify2003]

@@AgathaAndAnything Thankyou - I was working tonight and we always hand our receipts in, but the next one I will save and post the prices. Is it best to use 10 or 5 or doesn't it matter?

[@AgathaAndAnything]

10 is normal unleaded (cheaper) 5 is super unleaded (more expensive) you’ll get more mpg from super BUT it really depends on the price difference and at what point it works for your car, as I said on my test super works out better if it’s 12p MAX more than standard

[@rectify2003]

@@AgathaAndAnything Thankyou I do a lot of stop / start runs on a shift I never fully fill up, its so expensive Will fill up later Thanks again

[@knwgt5426]

@@rectify2003 I got mk4 1.4 also. Use super unleaded you will get more mpg , but don’t go for shell V power it’s too expensive. Tesco momentum 99 is best value. Should be about 161/162p per litre with them prices

[@lucythemoggy1970]

on super rick, you will notice judith is more responsive

[@stu0500]

E10 is terrible eats injectors on oiler cars.

[@AgathaAndAnything]

I’m only putting the odd tank of 10 in if I’m honest

[@stu0500]

@@AgathaAndAnything just had a 2006 civic 1.8 ES I-vtec recovered in. Needs 4 injectors customer has given me the car. Tesco 99 and she’ll Vpower are the best super unleaded you can get

[@Hellndegenerates]

So ive got a Focus 2.0 st diesel 2017 Stage 2 240hp & 580nm Ive hit 67 mpg I going to drive to Madrid from yorkshire On less than 78 litres of diesel, less than £125

[@TheJimmy80808]

Economy depends mostly on how and what roads you drive but on 5 months of back to back testing with Sainsburys or Morrisons E5 to E10 filling up 1-2 a month I’m getting an average of 7% greater economy with E5. So say fuel is £1.50 for E10 as long as the premium fuel is less than 10P more it’s worth filling up with E5. At £1.75 for E5 I’m saving money if it’s less than 12.5p extra. My MPG in 04 Rover 45 1.6 is 45 to 60mpg on 50mile* motorway driving at 56-60mph. If you have a post 2004 petrol (it might work on post 2000 cars) car then Getting a Scan Gauge 2 can show you instant and average fuel consumption. Doesn’t need a smart phone just plugs into the OBDII port. It can give you fault codes as well as lots of other live engine data with quite a fast update speed and 10 times easier than a smart phone. www.scangauge2.co.uk/product/Scangauge/LLU-0001/sgII/ScanGauge-II

[@AgathaAndAnything]

Interesting thanks Jimmy I’m currently sticking to E5 and on course for my best mpg ever this month