Synthetic Oil

Oil of Choice

  • Castrol Syntec/Edge

    Votes: 233 8.4%
  • Royal Purple

    Votes: 325 11.7%
  • AMSOil

    Votes: 396 14.3%
  • Valvoline Synpower

    Votes: 160 5.8%
  • Mobil 1

    Votes: 992 35.9%
  • Other

    Votes: 660 23.9%

  • Total voters
    2,766

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HEMIMANN

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I would be chapped as well, 3.73 on a HD ram, no way. Freeway queen. I have to look up the tow charts on this one.

Yeah, I watched some of the axle gear change out threads and found the task too rich for me, at least for the past 5 years I've owned.it.

And it's a torsen differential, so expensive. I dont know all what would have to go into a gear ratio change. If the ring gear is fixed diameter, is it just a smaller pinion gear and speedometer reset?
 

HEMIMANN

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pdf tow charts, you left 3k worth of towing weight over the 4.10's. Plus you would just feel more comfortable with the better power when towing.

Yeah it grunts after a gear shift, which is why I tuned it to shift at higher rpm and fuel harder when towing. Getting rid of RFE oil thermostat is critical to saving the trans. Switching from MOPAR ATF+4 to Red Line +C ATF if spring ever shows up.
 

Burla

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Crazy how expensive everything is now...anything I look at, shocked at how much things cost!
oh yeah, bottom is about to drop, 50 bil in loss thurs. silver, that's all I have to say. People are somehow under the impression it can't get worse, lol. All you have to do is watch the price of redline, tale of the tape. There is zero way to stop it, but there are many ways to prepare for it.
 

Burla

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Yeah it grunts after a gear shift, which is why I tuned it to shift at higher rpm and fuel harder when towing. Getting rid of RFE oil thermostat is critical to saving the trans. Switching from MOPAR ATF+4 to Red Line +C ATF if spring ever shows up.
longest winter ever, lol. My honey do list has a ton of dust on it.
 

star_deceiver

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chatting with curly I noticed something I hadnt noticed before on tire size and just another reason they should have never used 3.55's on this rams, especially with the rfe. The professional charts say the only use for 3.55 is economy, and since the white is never recommended you shouldnt even have 33's with 3.55's. If I knew I was gonna keep this truck so long no way I get those dog 3.55.

View attachment 516219
Those gear ratio charts assume a 1:1 final transmission drive at 65mph. These charts were also, more than likely, written in the 70’s. Those 5 and 6 speeds never had a low enough first gear.D848767F-D017-4FD6-81A9-7D9B033D31D0.png
 

knightjp

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While we are getting a bit off topic, I think mine has 3.21 gear ratio. What does that do for off roading and fuel economy. My build is somewhat of a daily driver and overland rig.
 
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HEMIMANN

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I already got most of it in the 2500 truck.

Anybody can make power - the challenge is for how long?

Keeping these things together is a PITA. The Forum is indispensable for that. It's like a total commitment now, rather than facing the next batch of unknowns on new, inflated price trucks.
 

HK1837

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After Dave from Redline's assurance that the new labelled Redline 5W-30 oil is just a label change (thanks Burla!), I ordered 20 quarts of it on a 15% Ebay deal with free freight. It is still expensive in Australia but I know it works and anything else is an experiment. For some reason it is about $10 cheaper here a the moment for 4 x 1 quart bottles rather than 1 x 4 quart, but I'm not complaining as those are easier to pour into the Hemi.
 

ramffml

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"Cool" article on coolant additives, I am still unsure about there, but if I was running hot, I would look into them more.

I wonder how well those products mix with the coolant we have in our trucks, isn't the coolant we run a special type that you can't just mix with other coolants and/or stuff?
 

REDinAZ

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...since emptying the original factory fill it's been nothing but Pennzoil. I ran Pennzoil Yellow bottle for I think about an additional 2k change. and then it's been Pennzoil Ultra Platinum 5w-20 continuously after that (none longer than 4k miles, which for this truck means about once annually). with Fram XG 10060 filter only. 6 years later it's still running like a sewing machine.
 

REDinAZ

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"Cool" article on coolant additives, I am still unsure about there, but if I was running hot, I would look into them more.
yes, the RL "Water Wetter". has been around a LONG time. I remember at some point adding it to some Ethylene Glycol radiator fill. but any result with it would be purely anecdotal. high heat can be "kinda" an issue out here in the desert. I don't know, IMO if you got a temp gauge on high you have other things that need addressing well beyond just adding a quart of any of that stuff.

EDIT: FWIW running more distilled water and least amount of antifreeze possible during the very hottest months would IMO be a better solution. and then maybe add a bottle of that stuff to that. I'm sure it has a bunch of good corrosion inhibitors in it.
 
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REDinAZ

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I wonder how well those products mix with the coolant we have in our trucks, isn't the coolant we run a special type that you can't just mix with other coolants and/or stuff?
you can't mix the old green with the new colors and vice versa.
 

HEMIMANN

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yes, the RL "Water Wetter". has been around a LONG time. I remember at some point adding it to some Ethylene Glycol radiator fill. but any result with it would be purely anecdotal. high heat can be "kinda" an issue out here in the desert. I don't know, IMO if you got a temp gauge on high you have other things that need addressing well beyond just adding a quart of any of that stuff.

EDIT: FWIW running more distilled water and least amount of antifreeze possible during the very hottest months would IMO be a better solution. and then maybe add a bottle of that stuff to that. I'm sure it has a bunch of good corrosion inhibitors in it.

We did exactly that for generator sets deployed in Saudi Arabia, Iraq, and Afghanistan.
The engines were filled with distilled water and additives (anti-corrosion, water pump lube, anti-cavitation since these were all diesels).
They get about another 5-10 degrees F of cooling @ rating full load.

Glycol antifreeze has a much lower specific heat absorption than pure water.

But pure water boils at something like 230F under 15 psi whereas 50/50 coolant boils around 265F. At sea level.

So you got to know what you're doing with lower alarms, and cooling system size.
 

REDinAZ

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We did exactly that for generator sets deployed in Saudi Arabia, Iraq, and Afghanistan.
The engines were filled with distilled water and additives (anti-corrosion, water pump lube, anti-cavitation since these were all diesels).
They get about another 5-10 degrees F of cooling @ rating full load.

Glycol antifreeze has a much lower specific heat absorption than pure water.

But pure water boils at something like 230F under 15 psi whereas 50/50 coolant boils around 265F. At sea level.

So you got to know what you're doing with lower alarms, and cooling system size.
MANN, yea, in a vehicle? roughly 70 water + 30 antifreeze + a bottle of some inhibitor would be about my comfort level trying that.
 
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