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| # | Post Title | Result Info | Date | User | Forum |
| Answer to: Should I use octane booster | 29Relevance | 5 years ago | Kaizen | Submit Your Question HERE | |
| Use the octane the make recommends. The only reason I would use a higher octane or octane booster is if my engine was knocking. | |||||
| Should I use octane booster | 29Relevance | 5 years ago | Lupo | Submit Your Question HERE | |
| Hi Scotty I have a question to ask you please I have GMC Sierra 1500 Denali 2017 with engine 6.2 l my question is if use octane booster that add 4 extra octane and I’m already using 93 octane gas will damage the engine? | |||||
| RE: 2007 Acura TL misfire | 27Relevance | 3 years ago | jdavidm | Submit Your Question HERE | |
| Not usually.but might under hard acceleration. Higher octane fuel helps prevent pre-detonation in high compression engines. KInda like turning a gas engine in to a diesel when high compression fires low octane gas.before the spark plug does and makes that knock sound because it ignited out of time. Today's high tech computers in cars can sense the type of fuel that's being fed the engine and adjust timing accordingly. An '07 may not be capable or sensing octane. I suggest using high octane 91 as recommended by the manufacture. | |||||
| Answer to: Distance to empty on Ford Escape 2014 | 33Relevance | 4 years ago | Dan | Submit Your Question HERE | |
| With a turbocharger, knowing how much it can compress fuel before it detonates (aka. the fuel octane) is a must. Otherwise the detonation makes the pistons fall apart, but it really wasn't implemented all that well on the Ford 2.0T. The car uses the knock sensor (pretty much a microphone strapped to the engine block) to look for detonation. The car will alter with the ignition parameters until it finds a value where it gets the most power but no knock. Using the parameters it figures out and built in data tables, the car can guess the fuel's octane level. There's a guy online who reverse engineered the ECU firmware on a '90-'99 Toyota MR2 turbo, So here's a lot of information on how octane level detection was implemented on a 37 year old engine, Obviously, modern engines are way more complex, and most don't limit themselves to two octane levels and 3 measurements throughout the power band - I'd assume that it's all on a linear scale with measurements throughout the entire power band. | |||||
| Answer to: Is dirty gas causing engine rebuilds every 6000 miles | 33Relevance | 4 years ago | Elbanhawy | Submit Your Question HERE | |
| I have a 2005 Toyota Camry in Egypt, I rebuilt the engine five times and it only has 50,000 km on it, I am the original owner, I don’t rag on it, I am over 50 years old , is the dirty gas causing this ? I also have a 2005 Mitsubishi lancer 1.6 L since new, I had to rebuild the engine three times and the transmission once (transmission was rebuilt at 300 km), but I do know the cause of the transmission problem, it overheated while driving fast and broke the transmission chain because they put the wrong transmission fluid in it at the factory, there is no factory warranty whatsoever, I paid out of pocket to do all these repairs, the Mitsubishi has 55,000 km on it now. I also changed the fuel pump twice a year in both cars, and it looks like black mud is coming out of it, I clean the tank and put new fuel and the new pump only lasts 6 months, they lie and say it is 95 octane gas, A chemist told me that the octane rating at the pump is usually below 60 octane. Do you think the dirty low octane gas is causing these engines to go bad. I know the octane is low because when I turn off the car it stays running for a few seconds. I hope you answer my question. Thanks. Hisham | |||||
| 2019 F150 5.0 V8 Preignition Detonation | 33Relevance | 4 years ago | V8forlife | Submit Your Question HERE | |
| Hey Scotty! I have a 2019 F150 5.0 V8 with the 10 speed automatic transmission 4x4. It has about 50,000 miles on it. I purchased the vehicle used from a dealer March 2020. According to the documentation I can find, I am the second owner. I’m in the southwest portion of the country. The issue I am having is under low to moderate acceleration, around 20-30 miles per hour, I am hearing a rattle/metal ping noise from under the engine area. It gets worse if the truck is going up any incline at the same speed. I’ve brought the truck to 2 separate Ford dealers. The first told me that the engine is just noisy and to drive my truck harder. I laughed and never went back there. The second dealer told me that the 5.0 V8 runs at a higher compression and if I run 87 octane gas, I could experience preignition detonation which they believe is the noise I hear. The recommend me use 89 or 91 octane and that should eliminate the noise. I have done some testing with running 87 and 89 octane in the truck and have noticed that with 89, I do not hear the noise as much and as loud. I also have read that preignition detonation is not good obviously. I watched your videos about the different octane fuels and am just curious to your insight into this issue combined with the octane levels. Any thought? Thank you! | |||||
| Is dirty gas causing engine rebuilds every 6000 miles | 33Relevance | 4 years ago | Elbanhawy | Submit Your Question HERE | |
| I have a 2005 Toyota Camry in Egypt, I rebuilt the engine five times and it only has 50,000 km on it, I am the original owner, is the dirty gas causing this ? I also have a 2005 Mitsubishi lancer 1.6 L since new, I had to rebuild the engine three times and the transmission once (transmission was rebuilt at 300 km), but I do know the cause of the transmission problem, it overheated while driving fast and broke the transmission chain because they put the wrong transmission fluid in it at the factory, there is no factory warranty whatsoever, I paid out of pocket to do all these repairs, the Mitsubishi has 55,000 km on it now. I also changed the fuel pump twice a year in both cars, and it looks like black mud is coming out of it, I clean the tank and put new fuel and the new pump and it only lasts six months, they lie and say it is 95 octane gas, A chemist told me that the octane rating at the pump is usually below 60 octane. Do you think the dirty low octane gas is causing these engines to go bad. I know the octane is low because when I turn off the car it stays running for a few seconds. I hope you answer my question. Thanks, Hisham | |||||
| Answer to: 87 or premium? | 27Relevance | 3 years ago | MountainManJoe | Submit Your Question HERE | |
| read it again. it says: Premium unleaded gasoline with an octane rating of 91 (Research octane Number 96) or higher required for optimum engine performance In other words , you lose a few horsepower, which is exactly what Scotty always says. Further along in the manual ... If premium gasoline is not available If 91 rating gasoline cannot be obtained, you may use unleaded gasoline with an octane rating as low as 87 (Research octane Rating 91). You'll be fine. Just watch for knocking. | |||||
| 2020 Acura RDX 2.0T- why premium gas, when same engine in Honda says Regular? | 27Relevance | 3 years ago | Jiminwisconsin | Submit Your Question HERE | |
| Scotty, Love your YouTube channel ! I have a 2020 Acura RDX, 2.0T with 50,000 miles. Reading the owners manual on page 355 under the heading “Fuel Recommendation “ it says “”Unleaded Premium gasoline …91 octane or higher”. In the description it says that use of a lower octane could cause metallic knocking…and will result in decreased engine performance. Use of …octane less than 87 octane can lead to engine damage..” My question is why does autos mfg by Honda use regular gas? Is Acura just trying to “jack-up” their mpg records? I love this car! Jim | |||||
| Which fuel should I put in my 2020 330i? | 27Relevance | 4 years ago | pgroome | Submit Your Question HERE | |
| using proper octane for my car I have a 2020 BMW 330I X drive with 52K miles. I have been using either 91 or 93 octane since the car was new. It has on the the fuel cap door that it is recommended to use 91 octane but can use 89 octane as the minimum. Would this adversely affect my engine. I do realize that I may not get the same performance but I would be fine with that? | |||||
| RE: Premium versus Regular in GS350 F sport 3.5 V6 306 HP 11.5 | 33Relevance | 5 years ago | jimz | Submit Your Question HERE | |
| I'm just a car driver and don't know crap but every written instruction I ever saw had two choices. Like for oil weight they "suggest" to consider the condition the oil is used under. The same for gas grades. octane can vary because of use. Hard driving asks for more octane. "easier driving" can allow for lower octane. If manufacturers deny warranty then they must also have some way to prove your driving conditions. For instance did your kid drive the crap out of the car when you put low octane in? Or, did you tow higher than recommended weights with high octane? Instructions are lawyereese to save someone money. Find another lawyer to protect yourself. Use of gas is as optional as color. | |||||
| Answer to: Sheetz 88 octane | 29Relevance | 2 years ago | Justin Shepherd | Submit Your Question HERE | |
| If it's not specifically designed to accept E85, do not use it. Ethanol corrodes rubber parts that are not designed for high ethanol content (E85 means it's 85% ethanol and 15% gasoline, regular gas is E10, which it was designed to use). You will corrode and embrittle any rubber parts. That will cost you a fortune. My 1999 Ranger is a flex-fuel vehicle, it says ethanol or gasoline only, behind the fuel door, and the VIN comes up that it is indeed flex-fuel capable. You use more ethanol than gasoline due to ethanol's considerably lower energy per gallon. It doesn't make any difference if it's designed for ethanol, the cheaper price doesn't equal gasoline's potency, so you will consume more ethanol than gasoline. A side note, ethanol is partially oxidized already (CxHxOx is the general description of an alcohol, and there are tons of different kinds of alcohols, including DOT 3 brake fluid), thus it reduces ethanol's potency as opposed to straight hydrocarbon gasoline. | |||||
| Should I put 91 octane gasoline in my Jeep | 29Relevance | 3 years ago | fj2olivier@gmail.com | Submit Your Question HERE | |
| Scotty, Good morning. I have a 2022 Jeep Wrangler with a 2.0l turbo gas engine. The owner's Manual states that the engine is designed to meet emission requirements and provide satisfactory fuel economy and performance at 87 octane. It goes on to say that the use of 91 or higher octane premium gasoline will allow the engines to operate to optimal performance and the increased performance is most noticeable in hot weather. By the way, we live in south Louisiana. LOL. I figured it currently cost me between $20-$25 dollars more per month to put 91 octane. I am very particular about my vehicles and I just want to make sure that I am not over thinking things. Appreciate your feedback and always watch your channel. Very good information that you share. Thanks, Faron Olivier < personal info removed -mod > | |||||
| Gasoline Octane Question and Question About Acura Ownership | 29Relevance | 5 years ago | stevensatava | Submit Your Question HERE | |
| Hello Scotty. I love your channel and have found it very helpful. I have recently purchased a 2021 Acura ILX and with just under 650 miles on it and have two questions: The owner's maunal and the label on the fuel door say to use 91 octane gasoline or higher, however not to use below 87 octane. Will using 87 octane fuel in my car cause a break down? The car has a 201 HP four cylinder engine. I have heard mixed reviews over the cost of maintenance on an Acura. On one hand I have heard that they are expenseive to maintain since they are a luxury car, and on the other hand I have heard that their cost of ownership is lower than average since they are Honda products. What is the overall consensus over Acura dependability and cost of maintenance? Thank you! | |||||
| Answer to: High octane gas probably did some damage to my car | 29Relevance | 5 years ago | spijet | Submit Your Question HERE | |
| Red-ish substance on the upper part of the spark plug (the one that is not inside the combustion chamber) could be a mix of oil leaking through and a corona discharge caused by bad electrical insulation on the ignition coils. BUT if you have red residue on the spark plugs's electrode side — this is a sign of one of the lowest-quality octane boosting additives there is (I forgot the exact name of it, sorry). If you still have some leftover fuel from that gas station and a cash receipt — feel free to sue them (yes, you can sue bad gas stations in Russia if you can prove that they sold you this fuel). Out of curiosity, where did you buy this 100 octane gas? Was it one of the bigger players' stations (like Rosneft, Gazprom or Lukoil) or some smaller company? I usually buy 95 octane fuel at Rosneft and it's been pretty good so far. | |||||
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