hence the term YMMV.
93 Octane? The debate continues...
I have been reading all of the internet, mostly on this forum, over the debate of filling up the Cruze with the highest octane fuel. I have had my 2012 Cruze LS 1.8L since December of 2011. Until the last two times I have filled up(past 3 years), I have used regular gasoline. But recently, I was told I need a fuel injection cleaning and told that if I simply put in a bottle of fuel cleaner as well as use Shell V-Power, that would do the trick.
I did do that and the two times I have done it, I have noticed much better performance out of my car. Not only better performance, but better millage too. I did read in the Cruze manual and it states about using at least regular unleaded fuel (87 Octane level). But the manual states you can use higher octane if you wish.
Everyone I have spoke to about this thinks, "it's a bad idea", "it's not good for your engine". Both people who know cars and others that have just had more experience with cars.
I don't see what can be the downside to using higher octane gas in the Cruze.
What are your thoughts? I am stuck with what to believe.
I did do that and the two times I have done it, I have noticed much better performance out of my car. Not only better performance, but better millage too. I did read in the Cruze manual and it states about using at least regular unleaded fuel (87 Octane level). But the manual states you can use higher octane if you wish.
Everyone I have spoke to about this thinks, "it's a bad idea", "it's not good for your engine". Both people who know cars and others that have just had more experience with cars.
I don't see what can be the downside to using higher octane gas in the Cruze.
What are your thoughts? I am stuck with what to believe.
41 - 48 of 48 Posts
Your driving habits, traffic patterns, elevation, and heat with a/c play into the gas consumption. Try and find the cheapest reputable top tier fuel (you trust) in 91/93 and try 2 tanks before it gets colder out if you wish to see if it works. I tried 89 and went to 93 as 89 would still pull some timing from me in stop and go idle with a/c on. Even in the winter 87 would pull timing hard from my driving. Now tuned for 93 grade, 93 is as low as I go.So you are saying 89 doesn't even make the grade? I found 91 overkill and at 40 cents a gallon extra. 89 is 20 cents extra and works just fine? Perhaps the key is to have a new engine like mine with 3K before the system gets gunked up, like every computer I have owned? I don't trust Shell after what they did to Florida and Canada about 10 years ago. Interesting GM twist too?
http://www.toptiergas.com/retailers.html
Yep. I'll see if 93 runs in the LS better than the 87 she is using but I doubt she is even using top tier. My next tank to NJ I'll try out costco by Golden Gate. That gas isn't sitting long at those prices usually.hence the term YMMV.
Both of ours cars have gotten several of their worst MPG tanks on Costco gas. The Cruze hates even their 93.Yep. I'll see if 93 runs in the LS better than the 87 she is using but I doubt she is even using top tier. My next tank to NJ I'll try out costco by Golden Gate. That gas isn't sitting long at those prices usually.
I may wait till I get back in town then. I wasn't tunes and had stock gaps when I tried it last summer. The BP I have in now is still going strong. Speaking if gaps, I need to regap again.Both of ours cars have gotten several of their worst MPG tanks on Costco gas. The Cruze hates even their 93.
I agree completely. There are no hills around me. I drive about 1/2 around a smallish (30000 person) town and 1/2 out in the country on 55mph roads on my way to/from work. For me, it makes little sense to spend the extra $$ on premium, especially when it's become a $0.30 per gallon for premium in some cases (like the last fillup).pL2014's driving environment has predominately low engine loads so the higher octane, while improving the car's performance, doesn't appear to improve it sufficiently to justify the extra pump cost. A high load environment (the graph above is an extremely high load) can easily justify the higher pump cost in terms of drivability and fuel economy. Thus my recommendation on how to determine the price/performance sweet spot for each driver.
I have a few hills in the rural part of my trip to and from work. This one steep hill allows me to early detect blowout from the gap growing where I wouldn't find it on flat roads from normal driving.
I live in such a hilly area every single time I try to run less than premium it's very apparent the car has less power and is working much harder to get up some of these steep grades. In my area its consistently 40-60 cents a gallon more for premium, its rare to find a 30 cent difference.For me, it makes little sense to spend the extra $$ on premium, especially when it's become a $0.30 per gallon for premium in some cases (like the last fillup).
Even though it cost me more I like the way the car feels on premium vs regular, so the extra cost is worth it to me. In the winter though I idle allot more, use remote start and drive a higher percent city, so I just run 89 octane. If I'm gonna burn fuel not moving the cheaper the better!
The $0.30 I was referring to was compared to midgrade. My last fillup at Shell, 87 was 3.519, 89 was 3.669 and 93 was 3.969. That's about as wide a spread as I've seen in MI between grades.
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41 - 48 of 48 Posts
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