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  1. nascar72

    Is it safe to manually shift 545rfe?

    TOW/Haul locks out 5ft gear holding 3rd until vehicle speed really stabilizes and then shift in 4th. and OD/OFF locks out both 4th and 5ft gears. So yeah in 3rd gear at 55-60 mph the hemi will turn around 2500 rpms.
  2. nascar72

    Is it safe to manually shift 545rfe?

    TOW/HAUL will cancel 5ft gear only and will modify shift pattern holding 2nd gear longer than normal then shift in 3rd then converter lockup will occur at around 30 mph depending on how hard the acceleration is and when vehicle speed stabilizes it will shift in 4th. And as soon as you press the...
  3. nascar72

    Is it safe to manually shift 545rfe?

    I had an '03 1500 and only had OD/OFF on the button and shift pattern was the same but it locked out both OD 4th and 5ft gears.
  4. nascar72

    Is it safe to manually shift 545rfe?

    I had an '03 1500 and without the tow/Haul feature and when I hit the button it would cancel both 4th and 5ft gear with no difference whatsoever in shift pattern or holding 2nd gear longer than usual. Now with my '08 2500, I now have the tow/haul mode and what it does, is cancel 5ft gear so it...
  5. nascar72

    Which coolant

    I have an '08 2500 with the 5.7 that I bought in 2021 with 110k km (70k miles) and as soon as I had the chance, beside oil change, did complete coolant flush and refilled it with a 70/30 Prestone universal coolant and distillled water. And 40k km later, (25k miles), no issues whatsoever. Did...
  6. nascar72

    Lifter failure again… how to bulletproof?

    Mine's a 2500 '08 with the 5.7 and rpms are at around 750 in D with engine at full operating temp.
  7. nascar72

    1st Travel Trailer for my Ram 2500

    Exactly what I was going to say! I have an '08 2500 with the 5.7 hemi and the 5-45RFE tranny and when towing my close to 8,000 lbs 5ft wheel rv, I tried using tow/haul mode wich will cancel 5ft gear but 4th gear still remains an overdrive gear. And even on flat highway sections it will take...
  8. nascar72

    Pennzoil Ultra Platinium on sale at Canadian Tire

    Cool! Really appreciate the tip. Thanks.
  9. nascar72

    Pennzoil Ultra Platinium on sale at Canadian Tire

  10. nascar72

    Pennzoil Ultra Platinium on sale at Canadian Tire

    I've got an '08 2500 5.7 that I bought used back in 2021 and it calls for 5w20 wich I've used the first few months I got the truck but when I started towing my 7,500 lbs 5ft wheel camper, I switched to 5w30. My question is; Should I stick with 5w30 or go back to 5w20 for light use during winter...
  11. nascar72

    Coolant mixture

    Always keep in mind if you only drain by the rad's drain valve that there will always be about roughly a gallon or 2 left in the block. So usually I refill with straight coolant and end up 9 times out of 10 with a 70/30 mixture or a -45 reading. So by adding distilled water in the cooling...
  12. nascar72

    Hemi Engine Going Away?

    Maybe the hemi will stick around for the Classic Ram and some 2500s a year or two but will no longer be an option for the new Ram body style. Just saying...
  13. nascar72

    Does anyone else but me think there are way too many electronics in today's vehicles?

    That is exactly why I am keeping my '08 2500 for as long as it will run. I have none of this electronic mumbo jumbo. Only the basic necessities like A/C, cruise control, AM-FM CD radio with auxilary port and that's all I need. The truck's body is still in great shape, still low mileage and...
  14. nascar72

    Drivetrain 'Shudder' when backing up and turning. Rear Suspension, Differential, Transmission or what ?

    My '08 2500 does it also forward pulling off from a stop after a long drive (couple of hours of highway driving) while turning. Just feels like something underneath would be binding or something either U-joints or my 3.73 rear diff and same thing when backing up in my driveway while turning...
  15. nascar72

    Sucks to be poor - Rant

    That's exactly what I did. I bought my '08 2500 two years ago very clean inside and out, body fully intact, rust treated every year since day one with 70k miles for 14k$. So far still loving the truck very much.
  16. nascar72

    Sucks to be poor - Rant

    Do like I do wich is wait 10-15 years and look them up used with low miles and lower price tag. I bought my '08 2500 SLT gasser with only 110k km (70k miles) in 2021 at 14k$ and I'll just keep it and run it to the ground lol.
  17. nascar72

    For the towing newbies...

    Exactly and also much simpler to put more gas than rebuilding or replacing a tranny imo. And, oh btw, I don't even know if there's at leas 1 mpg difference.
  18. nascar72

    For the towing newbies...

    Eversince I started towing an RV trailer , I knew right from the start not to put the tanny in OD when I had my Chevy Blazer S.U.V.s over 20 years ago. I would just put it in D or 3rd. Now I have an '08 Dodge Ram 2500 5.7 with the 5-45RFE tranny. I do have the Tow/Haul mode and how it works...
  19. nascar72

    Pennzoil Ultra Platinum 0w40

    Oh, and btw, I've been using the Wix XP oil filter but the Fram Ultraguard right off the shelf at either Walmart or Canadian Tire looks really tempting. What do you guys think? I know some of you seem to swear by the Royal Purple filter. Don't have any warm or hot engine "Hemi tick", truck is...
  20. nascar72

    Pennzoil Ultra Platinum 0w40

    Few weeks ago I got 2x 5L jugs of 5w30 PUP on sale at Canadian Tire for 40$ each. So now I'm ready for my oil change as soon as outside temps get warmer.
  21. nascar72

    What windshield washing fluid do you use?

    Always used the RainX brand in my '03 and never had any issues. When I got my '08 couple years ago, 1st winter I used RainX never had any issues as well. In the summer time I would use the standard blue stuff but the next winter I switced to RainX de-icer and then started to have issues like the...
  22. nascar72

    Radiator flush

    I've got a 3rd gen 2500 5.7 and I did a complete flush on the system and reverse-flushed the heater core for about 20 min and the other way for another 20 min and everything was pretty clean and even before I attempted to drain the existing coolant at the time, it looked pretty clear and had...
  23. nascar72

    Mobil 1 EP VS Castrol EP

    I'd been running the Castrol black bottle in my hemi but after I've read many threads on here where many are using Penzoil, I made the swich this year. Never really noticed the engine running differently nor a difference in gas mileage. In my gf's '11 Mazda 3, right after the warranty was done I...
  24. nascar72

    Over-stress motor concern

    I'm guessing driving at around the 55 mph range the hemi would be turning around 4 500-5 000 rpms depending on wich gear the tranny will actually downshift at WOT. My '08 2500 has the 5-45RFE tranny and it'd be turning @ 4 500 rpms on WOT after dropping in 2nd gear. Never really needed to hold...
  25. nascar72

    For the guys who think they get more power with 91 octane fuel

    Personnaly my 3rd gen hemi runs just fine on 87 octane. The only time I will bump it up to 89 is when I tow my 7 500 lbs 5ft wheel camper or If I'd be driving on hilly roads in the hot summer days. I've tried comparing 91 vs 89 while towing and didn't see any noticeable difference in performance...

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