While it’s always tempting to save money, if your car requires 95 octane, you must not use 91. As above, you CANNOT dump a tank in and expect the car to run ok. You should fill up with whatever octane your car specifies. That. The engine can deal with 95 but doesn't perform fully and the manual says not to use full throttle if you use 95. and so i've only ever put 98+ fuel in the car. 24. What’s the difference between 91 and 95? The 4% change in the octane levels is what makes the difference between the two fuels different. Advertisement. Hi Pookie, I'm sure you "must" put 98/98 Ron in. I mix 95 and 98 in my Vespa. Comments. . The more ethanol the better imo. Transmission swaps. 7 example and I always use 98 from Costco too. In your case, given that your car is standard, I think there may be something else that is causing the car to be noticeably more sluggish. What happens if you put 98 instead of 95? When filling up a petrol car it is important you don’t just grab any petrol nozzle. I can tell the difference between 95 and 98. If you don’t know what he put in it, you can siphon it out if you want to. Ever since then I've put 98 RON in from either Shell or Tesco. The fuel economy of your vehicle may also be affected. DO NOT INHALE. 6 liter 16 valve engine in a 95 tracker. swap the '95-96 harness into the car ALONG WITH the PWM solenoid connected but leave the solenoid in the pan, 3. Z Diesel is a special purpose fuel for use in high-speed diesel engines (diesel engines operating at speeds above 800 rpm). In the U. In fact many people choose to do that, as the more potent fuel theoretically burns more efficiently and may improve consumption generally. Also I am hoping 98 is actually better for the engine as claimed. But check your car’s handbook or the label inside the fuel filler cap to find out if high-octane fuel is. Can you mix 95 and 98 petrol? Mixing the 95 and 98 octane fuels will not cause any problems. ply313. Your car may run a bit rough if you went and put in 91RON fuel, because the manufacturer has tuned your car to run on 95RON or higher. What happens if I put 91 instead. The trans will bolt in, but you'll need to add a wire to the the wiring harness for the TCC apply solenoid and then reprogram the PCM to '95 base code to make TCC lockup work. Can you mix 95 and 98 octane fuel? Can you use premium unleaded in an unleaded car? Which unleaded petrol should I use? Does 98 octane clean the engine? What happens if I use 91 octane instead of 95? Is regular and unleaded gas the same? Can I put unleaded gas in my car? Is it OK to mix different brands of petrol?Hi all, I'm the new owner of a 2021 Octavia VRS here in Australia and was just wondering what the consensus is regarding petrol types. In June 2022, it said the annual average price differential between 91 and 95 petrol was 16 cents a litre, while the difference between 91 and 98 was 24 cents a litre. Some have raised the question of it being 94 not 95, but based on most responses I will let the car drive and refuel at half way. Or sign in with one of these services. richardJF. Fact of the matter is your car requires 98. E10 is 94 RON. 893 posts · Joined 2015. #1. So my question is should I be using 98 ron "optimax" fuel or similar, or should I just stick to your standard 95. Has PWM stamped cast in the pump. ago. 05-08-2018, 04:00 AM. . If you use 91 in an engine designed for 95 or 98, it could be destructive. then look at the fuel economy of. In the UK, standard unleaded petrol gets a RON of 95, while for higher grade petrol this rises to 97-98 RON or, among top of the range offerings from certain petrol companies, 99 RON fuel is available, which is the highest octane fuel in the UK. I did extensive comparisons (2-3 fills in a row) in my 2006 (car with knock sensor, CVVT) with my car where I did the same commute day after day. Testing conducted by Drive. I've got a 1995 transmission out of 3500. It seems to like it! That said, if your timing is stock then you may. Old cars and E10 don’t mix well, irrespective of octane number. Think I'll just put 98 RON in until I hear back from others. Automotive. 91 = 95. Many European vehicles, turbocharged, or performance vehicles require a minimum octane rating of 95 or 98 and should not be refuled with E10, 91 or 94 fuel grades. The more efficient the fuel is, the higher the number is. Can put 98 but engine is tuned for min 95 Unless you have no other choice ( stuck in the middle of nowhere) E10 should be ok…. Welcome to the Australian Ford Forums forum. Here's the thing: you can put a higher octane fuel in a car than the manufacturer's requirement. Using 95 / 98 in a car designed for 91 is basically a waste of money. You might see some small performance gains, but it’s probably placebo after spending more money on fuel. Nissan told them that running the Y62 on normal. When i'm home in Brisbane i run 95, down south 98 or 100 whatever i can find, and when up north it's 91. Pretty pleased so far. Then I used the following command to install windows from a win98 ISO created from an original install disk. On the 95 octane blend, the same car on the same day travelled 256km, or nine kilometres more, for an average economy of 5. So SP98 can allow for better performance than SP95, but only if your car is designed for it – there is no benefit to paying more for it otherwise. Can I put 98 fuel in a 95 car? No problem with putting 95 or even 98 in a car designed for 91 – except generally you will be wasting money. The car is a 2010 FG XR6 falcon. I tend to keep it filled with Optimax or Tesco 99 wherever I can. #3 · May 13, 2014. There is an additive you can get that will raise the octane level if you accidentally put in 91 but I dont know it's name. Was just asking, as my volvo didnt require it. . On premium fuel, it was quieter, smoother and throttle response was. Generally a vehicle can run on either 91 or 95 octane. Many soft parts in the fuel system (rubber hoses, diaphragms in fuel pump or carburettor, cork, zinc) are affected. Is there anything that i need to change to make. a 350 both are 4x4s. Yes, despite what you would think the Civic Si does NOT require premium. Maybe with 98? 98 and 95 are OK in this lovely little car. Super premium has a 98 rating. with a 350 can I put it. I tried to avoid 95 but 95 was totally fine. This can cause engine damage and result in a loss of acceleration. However, in the highveld you have approximately 20% less atmospheric pressure than at the coast - which makes it harder for fuel to ignite. Windows XP will load in the window. 85 km/hour. If the answer is 'not full throttle' then you should be fine. Z Diesel is a special purpose fuel for use in high-speed diesel engines (diesel engines operating at speeds above 800 rpm). If you’re driving a car that takes 91 unleaded and you fill up with a premium 95 or 98 fuel, don’t panic as this won’t lead to any engine damage. Fester999 Active Member. Here's the thing: you can put a higher octane fuel in a car than the manufacturer's requirement. Oh my god! It was bad! If your vehicle owners manual recommends 95 or better put in 95 or better. Can I put 95 octane in my BMW? I wouldn’t recommend you use anything less than 98RON, even on the e90, though it says you could use other lower spec fuel, there is a noticeable difference in the way the car picks up when on 98 fuel. It’s not always 10 per cent ethanol (it can be less), but it’s never more than 10 per cent ethanol. Watch on. I've used up 95 (or. You may just not a difference a little less cash in your wallet. from April 2011; to September 2011; last updated – posted 2011. Cost Savings Through Better Chemistry. 2001 Quattro 180 in black. The exhaust system collects waste gases from the cylinder ports and routes them to the back of the vehicle away from passengers while reducing the toxicity of combustion by-products and making engine noise quieter and more pleasant. I have occasionally put 98 in the ones that can take 91 but they do seem to be a bit harder to start when using 98 on cold mornings. I've been running my new car on 95, 98, and 91 for extended periods. g. How to Siphon Gas. Now click Settings at the top, select System in the new Window, and untick Floppy. I have always used, and had my stagea tuned on, BP ultimate '98 (or the occasional tank of VPower ) However I'm getting a lot of pinging. 17-42. Use whatever the factory recommends for your new car. 5% less), or just over 17km per litre. 16. Honda engines are not currently certified or designed to run on E85 or any other alternative fuel. Thanks all. The tire load index lets you know the load carrying capacity of a tire. This can damage valve seats. On a car designed for 91 RON fuel, that won’t matter, but if the car requires 98 RON, you might find the octane rating is not high enough. It’s short for Research Octane Number, a measure of the petrol’s octane rating. What i would do is try a few consecutive tanks of 91, to get a reasonable handle on fuel economy. And this is what most of our cars happily drink. In terms of 91 RON vs E10, the comparison is going. If you’re driving a car that takes 91 unleaded and you fill up with a premium 95 or 98 fuel, don’t panic as this won’t lead to any engine damage. )Can I put 98 octane in my car? Here's the thing: you can put a higher octane fuel in a car than the manufacturer's requirement. It's completely different on a car-by-car basis and no blanket statements like that are correct. Today, 95 gasoline enjoys the same quality standards as 98 octane. Check your car’s manual, or the inside petrol flap, for guidance on which fuel is best for your vehicle or fleet. Where we answer reader, viewer and listener questions. Higher compression ratios can be used when burning under pressure with the help of an eon rating. People who say that they notice a difference in performance of their car on public roads (91-95-98) in an I6T are FOS. It ultimately depends how harshly its been tuned, I suspect it will probably knock its tits off on 95 and you will do a piston. If the manual is not available, it is best to refer to the car manufacturer's recommendations. User #169802 10905 posts. Hi everyone. drive lightly), it shouldn't be an issue until I can refill it with 98 on the next fill up. What happens if you put 93 gas in a 87 car? If you put lower-octane fuel into your high-octane vehicle, whether by mistake or to save money on gas,. Some performance cars manufacturers recommend 98 grade fuel. Since filling up with 98 the car hasn't felt as quick, but I just put that down to me getting used to the power. People who tell you - ‘mate, she just runs better on 98’ (or whatever - smoother, cooler, etc. What’s the octane rating?Super unleaded 98 octane or super 95 octane unleaded petrol We recommend you use super plus 98 octane petrol. I think my car has a compression ratio of 10:1 which would be suitable to higher octane. If you put 95 in a car that should run on 98 octane, this will not lead to mechanical failures, or breakdowns. The greater the value, the greater the compression. Silly me. So yeah, people telling you their car runs better on XYZ. feistl New Member. If your manual calls for 89 and there’s a quarter tank of unknown gas in there, fill up with 91 to be safe. Its a win-win option, just costs a bit more. Sign in with Facebook. That doesn't necessarily mean it would do any harm, but compared to their 95 and 98 it was crap, and longer term, keeping your entire fuel system clean is such good, simple prevention. These are rated by their Research Octane Number (RON), which measures the petrol’s anti-knock quality (the. By AA Expert|1049 Posts31 December 2012 at 9:45am. I have been using premium BP 98 Ron fuel since ive had the car in 2019. Then try the same with 95 and 98. Anyhow, I filled up yesterday with 95 RON from Tesco as I'm going on a long trip in it to the South of France in 2 weeks and want to make sure the car runs fine on both. Click Open. What’s the difference between 91 and 95? The 4% change in the octane levels is what makes the difference between the two fuels different. Higher octane fuels don’t contain more energy. 370z runs on 98 (according to the book), but I read on the net that as long as I don't smash my engine (e. All that will probably happen is you simply suffer a loss of power, or function regularity. The tanks of sports or high-performance vehicles must be filled with 98 petrol. And with 7,000-plus rpm capabilities and 390 lb-ft of. You either put 91 in your econo daily driver or put 98 in a car you like. SOURCE: 94 nissan maxima se, Squeeling loud when car is started. super unleaded fuel instead of the normal 95 oct. The higher the RON, it is thought that the better your car will perform, while your engine will be. self-detonation, an undesirable effect - it's not diesel . The vehicle will perform better on 95. In this way we will reduce consumption and limit the emissions of polluting particles. However, it’s not acceptable to put in a lower octane fuel than the minimum recommended by the manufacturer. Can you mix 91 and 95 petrol? It is okay to mix fuels (except for diesel) in your car as long as the octane rating is not less than the recommended fuel you should use. Hi all, LOL just went for a horse ride and swimming ard Goat Island and since there were NO PETROL STATIONS that sold 98 octane, I decided to fill half tank of 95. Or, if it’s only half a tank or less, just fill up with a slightly higher octane. No problem with putting 95 or even 98 in a car designed for 91 – except generally you will be wasting money. The knock sensors will have been retarding ignition a bit, but its usually not a big problem until the engine is under heavy load and throttle opening. That’s the equivalent of 6. As a result, putting a fuel that has a lower octane rating to what your engine is used to may cause it to knock, which can damage. Manifolds, Engine mounts, Assy Brackets ect ect. Figure out a cost per km and go with the cheapest. Do i need to reset ECU for such small amount or no? I'm going to fill with 98 after work. Then it’s up to you," he says. A car marked as e10 compatible can take 98, maybe 95's the minimum recommended on that one 🤷♂️ On a side note mine's supposed to run on 98 and geez there's a difference between 91 and 98. While some companies only go for 97 or 98 octane fuel, you can get. But for 91 the manual actually says do not put high load on the engine cause it *will cause engine damage. Most countries use RON, however, USA uses AKI or (R+M)/2. Just wondering if 98 petrol is required? (Especially. Welcome to the Australian Ford Forums forum. GorGasm. However, the latest bulk-fuel-sale data indicates sales between the two octanes split almost equally. 86 litres per 100km (3. While this is unlikely to cause major damage to. Gasoline. 30 km/hour. So basically i've been filling up since new with 98 ron, but i'm wanting ot know will I notice much of a difference if I start filling up with 95. If you hear knocking, you’re likely using the wrong octane for your car. Or mapped for 98/99 and you'll gain. The difference between each fuel type is their ‘octane rating’, or the numbers that identify them, such as 91, 95 or 98. There isn’t any more energy in higher octane fuels. Many times you’d pump 95, thinking. For example, if you have a car that takes 91, then mixing with 95 is fine, but not the other way round.