Diesel Fuel
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Junior User
Joined: Apr 2003
Posts: 98
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From: Virginia
Diesel Fuel
What is the difference between 40 Cetane and 45 cetane diesel fuel?
Does it matter which to use?
I know 45 is more per gallon than 40.
Texaco calls their 45 "Premium Diesel".
Does it matter which to use?
I know 45 is more per gallon than 40.
Texaco calls their 45 "Premium Diesel".
Logistics Pro
Joined: Nov 2002
Posts: 4,788
Likes: 20
From: Mansfield, TX USA
Diesel Fuel
Cetane is a rating of the fuel's ability to combust or ignite. The larger the number, the easier it will ignite. Generally speaking, the higher the number, the better.
Some people report better fuel economy and more power with higher cetane numbers. Amoco claims that its premium diesel has a cetane rating of 50+.
The cetane rating is in large part based on the stock crude that the diesel comes from. Cetane ratings can vary from barrel to barrel. That is why refiners hate to get pinned down on cetane ratings. They can vary a lot. All diesel in the US must be 40, which is a relatively low number, but one that your truck will run fine on.
I suggest that you try a few tankfuls of 45 cetane. Keep track of your mileage and pay attention to power, etc. See if the higher rating does you any good.
Stanadyne, Power Service, Lucas, Howes and other make fuel additives that increase cetane ratings 3-6 points. They also give you detergents and extra lubes. These generally cost 3-6 cents per gallon. I don't know how much of a premium the 45 cetane fuel is, but the additives might get the same bang for less bucks.
Some people report better fuel economy and more power with higher cetane numbers. Amoco claims that its premium diesel has a cetane rating of 50+.
The cetane rating is in large part based on the stock crude that the diesel comes from. Cetane ratings can vary from barrel to barrel. That is why refiners hate to get pinned down on cetane ratings. They can vary a lot. All diesel in the US must be 40, which is a relatively low number, but one that your truck will run fine on.
I suggest that you try a few tankfuls of 45 cetane. Keep track of your mileage and pay attention to power, etc. See if the higher rating does you any good.
Stanadyne, Power Service, Lucas, Howes and other make fuel additives that increase cetane ratings 3-6 points. They also give you detergents and extra lubes. These generally cost 3-6 cents per gallon. I don't know how much of a premium the 45 cetane fuel is, but the additives might get the same bang for less bucks.
Logistics Pro
Joined: Nov 2002
Posts: 4,788
Likes: 20
From: Mansfield, TX USA
Diesel Fuel
Originally posted by Surf Fishn Truck
what about additives to cut the foam back? sometimes when I fill up i can only get like 22 gallons in it knowing it would hold 29.
what about additives to cut the foam back? sometimes when I fill up i can only get like 22 gallons in it knowing it would hold 29.
