About to buy a truck; should I go with diesel for less QRN?

Discussion in 'Mobile Radio Systems' started by AK5B, Oct 10, 2021.

ad: L-HROutlet
ad: l-rl
ad: Left-3
ad: abrind-2
ad: L-Geochron
ad: L-MFJ
ad: Left-2
  1. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    Shell Rotella is one of the best for diesels, including turbo which mine is. At Walmart, Rotella T4 15W-40 is generally about $15/gal, and Rotella T6 5W-40 Full Synthetic is about $25/gal.

    When we did heavy trailering I used T6, which also made for easy winter starts. Today no more trailering so I can use T4 if I’m feeling cheap, but winter starts will “rattle your teeth out” for the first few minutes!

    What oil are you using for your F150 that is so expensive?
    Last edited: Oct 11, 2021
    K0UO likes this.
  2. W7UUU

    W7UUU Principal Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    I'd buy the TRUCK I WANT and worry about the RF situation later... unless I was buying it for a communications vehicle as its primary role

    UT7UX likes this.
  3. AK5B

    AK5B Ham Member QRZ Page

    I appreciate your point , Dave, but as I am so undecided at this point I might as well ask every question before I plunk down big bucks. This little thread has already convinced me to rule out diesel---so that's one more category down.

    I was just looking at a bunch of older Land Rovers and Hummer H1s and while there were a lot of Hummers that really grabbed me most of them were turbo diesels. Darn!

    I like the new Jeep/Willys models, too, and took a Gladiator for a test drive earlier this week---main takeaway was the handling on the freeway was a bit too squirrely to my liking so that is also out of the running. Still need to drive an F15O and a Dodge Ram to see what my impressions are---and figure out what I want (the biggest problem as I like them all!).

    Whatever we end up getting will be my primary mobile/portable plaything (we can drive on some of the beaches near here) as well as utility vehicle for hauling stuff once in a while and long trips---so "radioability" is a more important factor for the most part.

    Off to hit the hay now and dream about low-mileage Land Rover Defenders from the 1990s...:D


    N0TZU and W7UUU like this.
  4. WA4SIX

    WA4SIX Ham Member QRZ Page

    Here's my input, being a long time, multimanufacturer diesel owner.
    Buy a mint 90s F250 of the trim type you want. Buy quality Cummins 6BTA & needed extras. Have the engine installed.
    You will have the best truck with the best engine & no RFI issues.

    It will still be cheaper than a new truck.
    You will love the torque.

    AK5B likes this.
  5. UT7UX

    UT7UX Ham Member QRZ Page

    New diesel is fine. With the mileage increasing amount of problems and their complexity (i.e. cost to solve) will increase faster than with gas. Go with gas, go with Raptot, this is fantastic truck. Buy diesel if you really need its torque.

    In Europe gas is expensive so diesel cars are popular due thier mileage and small trucks like Ranger have diesel engines only. However any big fail like turbocharger, high pressure fuel pump, injectors, whatever, will instantly eat all savings one has made with really better than gas mileage.

    Just my two cents. One of may cars is diesel.
    AK5B and N0TZU like this.
  6. N1IPU

    N1IPU Ham Member QRZ Page

    Last truck I bought was gas and didn't consider diesel though I have owned several. There is not much benefit to owning one anymore unless like pointed out above you do a lot of towing.

    I have considered building a Suburban but it would be a mechanically injected diesel if so. I held off though because of all the new regulation's making it near impossible to own anything mechanically injected. The idea I can run it multi fuel is the real benefit to that but like I said I doubt you could get away with it now.
    AK5B likes this.
  7. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    Even with electronically controlled injection, diesels since 2010 or so must have urea injection (Diesel Emissions Fluid, DEF) to meet pollution standards. Another fluid to buy and keep topped off in the tank. Warnings are displayed when the fluid is low. If it runs out the vehicle will go into a "limp" mode at very low speed.
    Last edited: Oct 11, 2021
  8. KG5RZ

    KG5RZ Ham Member QRZ Page

    I get that you have made up your mind against diesel. I'm going to throw one more think out there for consideration. Two identical trucks except for the engines, one with the Cummins, the other with the Hemi. The diesel truck gets 15 mpg combined city/highway while the Hemi gets 9. Same results between the Chevrolet 6L gas in my previous 2500, 10mpg on a good day, and the Duramax in the current 3500 DRW 4X4, 15 mpg. No experience with the Fords.

    With 87 octane gas at $2.89 and diesel at $2.99 locally the diesel still has an advantage 5 miles/dollar compared to 3.4 for the gas engine. Even adding in the cost of the DEF the diesel still has the advantage.
    AK5B likes this.
  9. AG5CK

    AG5CK Premium Subscriber QRZ Page

    Def is cheap enough I use roughly 1 gallon per 1000 miles in a Ford f550 and a Ram 2500. The Ford is almost overweight and idles all day.

    I don't wait until the low def light comes on. At just below 1/2 tank they will hold a 2.5 gallon jug.

    I replace a lot of def tank sensors on heavy equipment and they seem to fail more often in the summer months. I feel like it's heat related and keeping the tank full may help.

    No def issues on the Ford with over 70k miles and 5000 hours. Today could be the day though. The Ram only has 10k miles and no problems so far.
    N0TZU and K0UO like this.
  10. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    With the smaller gas turbo engines in late model trucks, EPA mileage is quite good -18 to 20 mpg - when the truck is lightly loaded which is most of the time for most owners. But pull a heavy load or trailer and it drops into the basement. A friend changed from an F350 diesel to a late model F150 turbo gas and is really happy with the day to day mileage but towing mileage sucked. Diesels are certainly more economical under load and are the better choice for a hard working heavier truck.

Share This Page