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.
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.
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 👍
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
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
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 😂
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.
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)
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.
I can give you a lot of examples of what significantly alters the fuel efficiency of my cars. Towing an empty trailer, having a mountain bike on a rear mounted bike rack, the number of people in the car or of course driving more enthusiastically come to mind. Those differences are measurable. Short journeys make the biggest difference. Putting either E5 or E10 in makes no obvious difference whatsoever. I have been using mainly E10 since 2009, my cars were designed to run on it and it has had no issues. The prejudice and fears that people are are sharing here are in their heads. If you want to try to prove a hypothesis please do a scientific test, this is no more than hearsay.
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
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
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 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....
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 👍🏻👍🏻
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
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.
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 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!
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.
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 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…
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.
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
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?
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.👍
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.
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
@@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
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!
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.
@@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 😂
@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
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.
@@davidmatthews3093 I've read newspaper articles about damage to rubber seals etc from E10. These people are supposed to know about this so I'm taking no chances, I'll use the best fuel I can get.
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 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.
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…
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!
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?
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
@@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?
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 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
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
