What is the difference between the Z4 E85 and E86?
The E85/E86 generation was produced from 2002 to 2008. The E85/E86 replaced the Z3 and is the third model in the BMW Z Series. Initial models were in the roadster (E85) body style, with the coupé (E86) body style being added in 2006. The BMW Z4 Coupé (E86) is the enclosed version of the BMW Z4 Roadster (E85). The series was launched four years after the roadster in 2006. The two versions share the same technical platform.Launched in 2006, the BMW Z4M is the ultimate and rarest Z4 built with a total of 916 Roadsters made for the UK market before production ceased in July 2008.It is best to avoid BMW Z4 E89 models manufactured before 2013, as early models had problems with electronics, roof waterproofing and minor transmission issues. After the 2013–2017 restyling, quality improved, naturally aspirated engines were discontinued and reliability increased.
Is E85 gas regular gas?
E85 is a liquid fuel consisting of up to 85 percent ethanol with the rest straight gasoline. It’s pitched as an alternative to pure gasoline and claims a variety of benefits, which we’ll get into later. E85 has an octane rating higher than that of regular gasoline’s typical rating of 87, or premium gasoline’s 91-93. This allows it to be used in higher-compression engines, which tend to produce more power per unit of displacement than their gasoline counterparts.When any liquid vaporizes (i. Because it includes ethanol, E85 absorbs more heat from the engine when it vaporizes than gasoline. Which means E85 cools the cylinder way more than gasoline.If you have 85 octane at the pump, you likely live in a high altitude environment like Colorado where 85 octane is equivalent to 87 at lower altitudes. In that case, you can run 85 where the manufacturer specifies 87 at sea level. E85 is not an octane rating, but rather specifies an 85% ethanol content.Because of this, vehicles that operate on E85 fuel will typically see a reduction in fuel economy by that same 30-35% rate compared to what the vehicle would experience on gasoline. However, E85 is generally less expensive per gallon than premium gasoline so for most users this is not a significant concern.E85 can damage your car’s engine: Ethanol is a corrosive substance that can wear down your engine’s components over time. Ethanol can also cause problems with your car’s fuel system and ignition system.
What happens if you mix E85 and regular gas?
Simply put, if you mix 5 gallons of 91 octane pump gas with 5 gallons of E85, you get 10 gallons of a 96-octane fuel that’s very close to E50, or 50-percent ethanol and 50-percent gasoline. The octane rating of pure ethanol is 100. What’s interesting is that when ethanol is blended with gasoline, it performs as if its octane rating is 112, making ethanol a very effective octane booster when used in gasoline.