65% of 87 and 35% 93 to make 89 octane gas
That depends on what the car was designed to run on. If it was meant to run on 87 octane, using 89 octane can make the mileage worse.
89% + 87% = 176%
my opinion-if it is designed for 87 use 89.
You can use either octane range of 87 to 89. But Daimler-Chrysler recommends to use 89 octane for optimum performance.
it will only if your car requires 89. If your car is designed for 87, then 89 will provide no benefit.
87 octane is sufficient.
87 to 89 octane or regular is what dodge recommends
Depends on what type engine. the 2.7 L and 3.5 L are made for 87 octane fuel but can use 89 and 91. The 5.7 L can take 87 octane or 89 octane but i would use 89 for it. if i had the 6.1 hemi i would use the 91 octane cause it is a more consistent fuel.
Try 87 Octane, if it does not "ping" excessively you should be OK, If it does "ping" try 89 Octane
87 Octane providing that it does not "ping" excessively - if it does use an 89 Octane
Plus (89 or 91 octane) will nor harm the engine or fuel system on an engine thats call for 87 octane.Plus (89 or 91 octane) will nor harm the engine or fuel system on an engine thats call for 87 octane.
All V6 engines and the 5.7 Liter V8 use Regular Unleaded 87 octane. The 6.4 Liter V8 requires 89 octane premium.