All model years of the RAM ProMaster City manufactured from 2015 onwards with a 2.4L Tigershark engine take regular, unleaded gasoline with an octane rating of 87 or higher.
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Regular Or Premium Gasoline For The RAM ProMaster/City?
However, this is only true for engines designed to derive benefits from premium gasoline. The RAM ProMaster uses a Chrysler-designed 3.6L Pentastar engine, and the City has a 2.4L Tigershark engine. Both take 87-octane gasoline, and the use of 91-octane gasoline will not provide any benefit to these engines.
Also read: 14 Common RAM Promaster Problems You Should Know
What Types Of Gasoline Can And Can’t Be Used?
Gasoline/Oxygenated Blends Or E-85
Furthermore, all model years of the RAM ProMaster City sold in the United States can take a maximum of 15% ethanol.
Furthermore, using methanol is strictly forbidden, and doing so will also severely damage the engines and fuel systems of both the ProMaster and ProMaster City.
Gasoline With Added Materials
Furthermore, we need to talk about gasoline with added materials. Typically, these additives are advertised as octane boosters or fuel system cleaners. However, these types of additives can do more harm than good, as explained in the 2022 owners manual of the ProMaster:
The use of fuel additives, which are now being sold as octane enhancers, is not recommended. Most of these products contain high concentrations of methanol. Fuel system damage or vehicle performance problems resulting from the use of such fuels or additives is not the responsibility of the manufacturer and may void or not be covered under the New Vehicle Limited Warranty.Source, 2022 owner
Indiscriminate use of fuel system cleaning agents should be avoided. Many of these materials intended for gum and varnish removal may contain active solvents or similar ingredients. These can harm fuel system gasket and diaphragm materials.
Instead of using additives, RAM recommends using gasoline with all the proper additives mixed into it. Typically, this type of gasoline is sold by TOP TIER retailers, and it’s highly recommended that you use it to keep your engine in optimum condition. Find a TOP TIER retailer in your area at toptiergas.com.
What If I Hear A Knocking Noise From The Engine After Refilling?
Hearing a slight knocking coming from the engine is an entirely regular occurrence. Especially when the car is performing at peak levels, such as when you’re towing with your RAM ProMaster/City, a slight knocking sound can be heard. However, if this knocking sound becomes audible and happens right after refilling, you may have more significant problems.
First off, in this case, you’re likely using gasoline with a lower than recommended octane rating. For example, in the RAM ProMaster/City, we would talk about gasoline with an octane rating lower than 87. This will almost always result in an engine knock.
This knocking noise tells you the engine is misfiring because it can’t handle the octane level used. This will be the case if you use lower than recommended octane level gasoline. It’s best to stop your car immediately and call your dealer or garage. Your car will need to be drained from its fuel, and the fuel filter will need to be replaced. Continuing to drive will result in severe engine damage.
What’s The Fuel Economy Of The ProMaster/City?
The RAM ProMaster is a full-size van; because of this, it´s exempt from fuel economy standards and hasn´t been tested by the EPA. However, according to Motortrend, you can expect a fuel economy of 13 MPG in the city and 18 on the highway. Carandriver also reported a combined MPG of 14.
On the other hand, the ProMaster City has been tested. All model years of the ProMaster City have the same 2.4L engine. Therefore, they have a combined MPG of 24, a city MPG of 21, and a highway MPG of 28.
What’s The Gas Tank Size Of The RAM ProMaster/City?
- All model years of the RAM ProMaster manufactured from 2014 onwards have a fuel tank capacity of 24 gallons or 90 liters.
- All model years of the RAM ProMaster City manufactured from 2015 onwards have a fuel tank capacity of 16 gallons or 60.5 liters.
Hi! My name is Stefan; I’m the owner and lead writer at TheDriverAdviser.com.
I’m an active writer on this blog myself, as well as a novice car mechanic. For the really technical stuff, I find writers with experience as a mechanic or who have studied mechanical engineering.
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