As noted, using higher octane fuel on an engine that does not require it is a waste of money and yields no performance benefit. That goes for the stock 2.4L engine on the Renegade. 87 octane is all you need. Around here, premium costs up to 60 cents more per gallon. Yet that additional expense buys you nothing in the way of performance improvement on the standard 2.4L Renegade engine.
If you have concerns about the detergent package, it's much more cost effective to buy 87 octane gas from a brand that advertises or certifies that its gas meets Top Tier(tm) detergent standards. Although the EPA mandates a minimum level of detergents and other deposit control additives to control engine and intake deposits, many manufacturers now recommend a higher level of these additives. This resulted in the development of the Top Tier detergent standard. BMW, General Motors, Fiat Chrysler Automobiles
, Honda, Toyota, Volkswagen, Mercedes-Benz and Audi are among those who recommend Top Tier rated fuel.
Look for fuel that meets Top Tier Detergent standards to assure that you get a detergent package that meets standards agreed to by these automobile manufacturers.
All brands licensed to use the Top Tier certification must meet the standards for all their grades of fuel
and all stations selling that brand
in the U.S. and Canada. Therefore, it's not necessary to buy premium gas to get fuel that meets Top Tier standards. Just look for, or ask about, Top Tier certification. Most fuels from major brands in the U.S. market now comply. You can check out www.toptiergas.com
for more information, and a list of certified brands that meet Top Tier standards.