2019年5月1日 · Unleaded gasoline with an octane rated as low as 87 can be used. Using unleaded gasoline rated below 93 octane, however, will lead to reduced acceleration and fuel economy. If knocking occurs, use a gasoline rated at 93 octane as soon as possible, otherwise, the engine could be damaged.

2018年6月1日 · Not one issue with using 87 octane with only the Grandprix really needing 91 for it to produce a little more power. Granted there are vehicles that must have high octane, any Cadillac 4.9 engine, and the 4.5 as they do not have the knock sensors to retard when required. It also looks like GMC is bringing back the 'Jimmy' for the 2021/2022 MY.

2020年1月4日 · We've put 8,800 miles on a 2019 Redline all on 87 octane gas with no knocking, pinging or performance problems. The owner's manual allows the use of 87 octane unless knocking occurs. 93 octane is recommended - not for engine longevity but for performance and better economy. At best 93 octane gas is about .30 (or 15%) more than regular gas.

2015年9月25日 · GM recommends 87 octane fuel in the LFW / LF1 (3.0) and LFX (3.6) as the owners manual states. These engines use the E39 PCM which is made by Delco and the PCM has a low octane, high octane, and a E85 table (LFW & LFX Only). These engines are high compression the 3.0's are 11.7:1 and the 3.6 is 11.5:1.

2010年10月17日 · I run my V6 on 87 or 89 octane, whichever is cheaper at the pump. It runs terrific on either. 2010 SLT-1 Terrain<br />awd, V6, towing package<br />Carbon black metallic<br />Titanium leather interior

2018年10月18日 · This is regarding the 2.0 turbo; the recommended fuel for the 1.5 turbo is regular grade 87 octane. So far all that I use is Top Tier Phillips 91 octane, no ethanol or BP 93 octane, with ethanol. I'm just a little gun shy of using 87 octane because of a potential LSPI issue with these direct injected turbo engines: Just not willing to gamble ...

2017年6月10日 · For the LTG 2.0L L4 turbo engine, premium unleaded gasoline meeting ASTM specification D4814 with a posted octane rating of 93 is highly recommended for best performance and fuel economy. Unleaded gasoline with an …

2010年1月2日 · a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs ...

2014年10月6日 · Hello everyone. I just wanted to give you my observations on switching to 91 octane for my Equinox. Just as some background, I bought my 4-cylinder Equinox in January 2014, and until recently used nothing but 87 octane TopTier gas stations (mostly BP). Over the last 2 months, I switched to 91...

2015年4月1日 · Octane only indicates how much resistance to detonation (spark knock) a fuel has. A higher octane number fuel subjects the engine to less detonation and vice versa. If your engine is running fine on 87 octane and you decide to …