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I looked at the label on a quart of Mobile 1 synthetic oil for trucks and suv's it showed that it was authorized for use in all turbo diesels and showed that it passed the GM standard. Since Mobile 1 came stock in my new porsche and stock in my sons BMW motorcycle I believe it probably should hold up well enough in my diesel truck
What happened to the truck?
I hope I can get mine home before it quits...
Bob129
I am sure on the road its going to do quite well. Now if I could just figure out how to reset the trip meters etc.
I am looking at purchasing either the GMC Sierra 3500 4x4 with the Dura-Max 6.6L and Allyson Transmission or the GMC TopKick 4500 with the same engine and tranny.
I know that the TopKick will turn around in a 34.4'area on the 2WD model. I am not sure about the 4x4 but I have not been able to find any information on the GMC Sierra 3500 4x4. I would assume it could turn around in a smaller area but just how small? Anybody that has one know? Also, from what the dealer told me, both trucks get approximately identical fuel mileage. Can anyone confirm this?
Thanks!
http://www.chevrolet.com/silverado/specifications/
GMC should be the same. 53.5 feet for long bed crew cab 4x4.
Thanks...
Thanks....link title
I can see no problem getting 20 or better when I get to the flat land. Take off slow... drive the speed limit or there abouts..Only hit 70 a few times and put her back on cruise at 60 or 65 depending on the road speed.
That's not bad at all. Talked to my friend with the 06 Dodge... 6 speed manual shifter and he is still getting 14.5 with 9K on his.
I hope and believe I made the right choice.
thought you should look up my post in the "how to get better fuel economy w/your diesel" category.
While I don't have a new truck, the stuff my mechanic is selling me does do the job on my 2001 Duramax. I've been using it for the better part of 2 years.
hope this helps.
Re: How to get better fuel economy w/your diesel [madeinamerica] by alex1640 Jul 23, 2006 (6:42 pm)
Replying to: madeinamerica (Jun 03, 2005 6:16 am)
I have a 2001 silverado w/ the duramax engine and a little more than 103,000 miles. I'm a lead foot and use the truck for commuting from Sacramento, CA to Berkley, CA (about 80 Miles). Sythetic oil DOES help, but I have found it is NOT worth the additional cost. My mechanic is a dealer for D1280x and has been adding it to my oil and selling it to me as a diesel additive as well. I used to get 15.4 mpg cruising at 75mpg. I now get 17 to 20 mpg. it's way worth it and more than pays for itself for me. I am pretty sure he gets it from interpacific environmental (google "interpacific environemental" or interpacific.biz)
Fuel mileage varies with fuel, the cheaper #2 working best, and condition of the fuel filter. Number 1 fuel or auto diesel seems to cause rattles in the valves similar to a restricted fuel filter. The engine runs very smooth and quiet when all is well, but starts to sound a bit rattley when the fuel filter starts to get clogged. Mileage also suffers with a clogged filter. I keep a spare with me. I have used several different types of additives, but don't see a great deal of difference, if any. At present, Lucas fuel conditioner is the choice as an upper cylinder lube. When using the thinner fuels, a good conditioner like Lucas will quiet the rattles.
Mileage started slow, but increased at a steady pace. There were times when I was wondering if it would ever improve and get anywhere near 18.
Driving less than 70 MPH on cruise and flat ground gets me in the 20 MPG range. 55 MPH gets me 22-24 MPG; however, I seldom find long enough stretches of level, flat ground to take advantage of the economy. Traveling at 55 MPH is akin to watching paint dry, mileage or otherwise.
From northern Wyoming to West Texas at 70-95 for 1238 miles averaged 17.9
Head winds and tail winds make a lot of difference, as do long hills such as leaving Trinidad, CO. up over the pass into Raton, NM. Mileage suffers greatly with long hills at 75-85 MPH.
Town mileage varies, but is mostly poor at best, being between 14 and 17, but mostly in the 15-16 range.
Max speed is 95 and best cruise is 90 where possible, with a smooth, quiet, comfortable ride.
The biggest problem with the mileage, next to the exceptionally heavy right foot, that I have had is with the fuel filter. They’re expensive, but so is a loss in MPG, so I change mine between 7,500 and 10,000 miles unless I suspect one is being restricted before that, but seldom go to 15,000. As a matter of fact, with almost 32k on the truck, I think I’m on my 5th fuel filter. I wonder why, with the computer display showing the supposed oil and fuel filter life left, it doesn’t sense the pressure differential and simply tell you to change the filter like it does with water in the fuel (I haven’t had water in the fuel, but it’s supposed to let you know if there is). I’m not sure why the fuel clogs the filters so much, but I’m glad they do, as that is better than a clogged injector nozzle. Baldwin filters are my first choice.
Actually what I wanted to ask was something I thought about a few days ago ... how does the truck KNOW when you change oil.... or fuel filter... Is it a mileage thing like someone told me... or a viscosity thing or something like that?
I am going to have to ask Chevy or something..
I got 18.8 on my first long trip of 250 miles or so.. and thats in the mtns from NC to VA and back.... but I didn't use the lead foot.. 60-65 and then 55 etc...
kcram - Pickups Host
Ray
Thanks for the tip on the gas in the diesel tank... I still worry about doing that but now know its covered by the insurance.
C57
Ideas on repair short of towing it to the dealer? She'll turn over but no hits.
Thanks,
Clint
All my research tell me this fuel with its extra lubricity will help diesel engines run smoother burn cleaner and free up any build up from using #2 for long periods of time. If you have been using #2 and switch to B20 you will have to change you fuel filters every other tank of fuel for about ten tanks because the biodiesel acts as a solvent and loosens the accumliated deposits in the fuel system and tank built up from the #2 diesel.
Here goes just bought my first tanks today and KNOX super stop in Dallas Texas.
You also need to find the source of the water - either a leak, driving through a deep puddle, or bad fuel.
kcram - Pickups Host
Is #2 the off road dyed diesel?
I'm hesitant to void my warranty.
PS
most dyed diesel is number 2 used for tractors and off road use only. Big fines if you are caught with it in your on road vehicle.
Are you sure you don't have the NON MPG rear end..??
Incidentally I pulled up Saluda Mtn I 26 today at 60mph.. shifted manually to 4th and had plenty of power left to accelerate if needed... My 250 Ford back in May could only do 31 - 32 mph... in 2nd and the engine at 2500 rpms or so.