Modern Fluids Poll

[motorheadmike]

If it happens to fall within my vehicle's warranty period it is done on time and in accordance with the manufacturer's specifications. No ifs ands or buts about it. It isn't worth the risk of something goes wrong.

My Hellcat requires a very expensive oil change every 6 months or XXXX miles - regardless if it's even been driven or not. Feels like I am pissing money away until I need that warranty. So don't give them an excuse. I just got all the Amsoil I need to do the HellKitty from front to rear (engine, trans, and diff) because of how hard I've been breaking it in. Feels like cheap insurance and so can add magnetic drain plugs while I am in there.

The best examples I have of more normal OEM service intervals are the Colorado and TBSS. Both, while under warranty got what they needed when they needed it. Now they get what they really need relative to the condition the fluids are in - this is either based on usage or age of the fluids. The TBSS gets so little use it is mostly just keeping an eye on things. The Mrs' Colorado is just now coming up to 90,000 miles and will need a fair bit of attention at 100,000kms. After that, again just the basics.

The wagon and Monte will only see maintenance. I don't subscribe to the idea of "just because" fluid changes - they have high quality fluids in them and I don't like pissing money away.

This should give you an idea of how seriously I take using quality fluids. Everything from Procharger oil to name-brand antifreeze in there, including Royal Purple for the lawn mower and Lucas 2-stroke mix. Usually there is more but I just changed the Colorado's oil today:

 

[mccormack944]

Brake fluid should be flushed out roughly every 5 years, it absorbs moisture, moisture boils at 212 not well over 400 like brake fluid. T case and diff services should be done roughly 50/60k miles as should power steering fluid, we have seen evidence through customer cars that those who have serviced their fluids had less long term issues. Coolant is every 5 years it does become acidic after as time goes by, and small particles of aluminum corrosion will clog a heater core in modern vehicles and have seen enough of them to prove it. Of you’ve been in a modern car with good heat on one side not so good on the other side and it’s not a blend door issue, it’s a partially restricted heater core

 

[1bad79]

I change my oil every 3000 miles and never use dextos in either of my gm vehicles because when I did follow what they said my camshaft went out in my truck engine since then I do my own thing 200,000+ on both now have Never flushed any other fluids

 

[olds307 and 403]

I agree on the OLM. Basically the rule of thumb is stay above 40% or change it. I run full synthetic, equals 10Kish Kilometers between changes. Towing, our Challenger did not make 10K. Coolant is now the 10 year stuff. Both diffs and the ZF 8 speed are full synthetic.

 

[fleming442]

Every 5k on the 3800, and on the 25k Rusterado 6.0, I wait for the loiw oil light, reset it, add a quart, and change it when it comes back on. Full synthetic in both.