Coolant change/flush?

[wisedave]

Hello,

I have a 2016 Range Rover Sport HSE (3.0L) with 99k miles on it. At what point (if any) do I need to have the engine coolant changed/flushed?

Are there any other maintenance items that are critical at this interval?

Thanks for the help and insight!

Cheers,

Dave

 

[itsaguything]

Hello @wisedave .

I'm from the school that if you're thinking of changing the fluid, change it already.
Not very technical, I know.

So in order to be technical
1 I have attached the LR4 Maintenance Schedule. It states change every 10 years.
2 I have attached the HavolineXLC tech sheet. It states change the fluid every 5 years.

My take, 10 years is ridiculous. 5 Years is more like it.

As the fluid goes through heating/cooling cycles and is polluted with filings from bearings, impellers and residue from plastics and rubbers etc. the pH changes. And that won't be good for the engine, the tubing, the pump... the list goes on.

Moreover, Havoline XLC has a storage lifespan of 8 years. That's 8 years not being used and going through the cycles in your engine.
(Again, my take, someone from LR dreamed up a maintenance schedule without the due diligence of research)

Cheers


EDIT: As I'm feeling kind and generous today (don't tell anyone, its bad for my reputation) please see the added schedule for your RRS.

 

[wisedave]

Thanks for the additional resources @itsaguything! Much appreciated

Based on time and mileage, it looks like every fluid needs to be changed out.

When doing trans fluid, it is a pan drop and filter change or can they flush the trans out with a machine? For the coolant, is that a drain and refill or flush?

Much appreciated!

Cheers,

Dave

 

[itsaguything]

Now he's (@wisedave ) talking.

Yes, change them all!
The filter for the transmission is incorporated into the pan. Me, I'd change it all. Afterall, what's the point of putting fresh fluid into a vehicle with a reduced flow filter?
The coolant is a straight drain and refill. BE AWARE, there is a proper procedure involving a vacuum. There are nooks and crannies in the engine that will result in a air pocket.
The "sillies" out there will tell you that 'this or that component' is sealed for life. Don't listen to them!

Do you have the workshop manual?

 

[Longtrail]

Also think about the front and rear diffs and the transfer case if they've not already been done. Pay attention to using the correct fluids also.

 

[wisedave]

Now he's (@wisedave ) talking.

Yes, change them all!
The filter for the transmission is incorporated into the pan. Me, I'd change it all. Afterall, what's the point of putting fresh fluid into a vehicle with a reduced flow filter?
The coolant is a straight drain and refill. BE AWARE, there is a proper procedure involving a vacuum. There are nooks and crannies in the engine that will result in a air pocket.
The "sillies" out there will tell you that 'this or that component' is sealed for life. Don't listen to them!

Do you have the workshop manual?

No, I don't have a workshop manual. For the trans filter, does this mean I need to replace the entire pan?

Thanks again! Much appreciated.

Cheers,

Dave

 

[ftillier]

yes, you have to replace the entire pan. You can however get a two-piece setup where the pan is separate from the filter, making subsequent changes easier.

 

[ftillier]

Moreover, Havoline XLC has a storage lifespan of 8 years. That's 8 years not being used and going through the cycles in your engine.
(Again, my take, someone from LR dreamed up a maintenance schedule without the due diligence of research)

I think the maintenance schedule is not rooted in engineering, but in human psychology and business profits. Buyers perceive that something is sealed for life, and for their usual short ownership that's a claim they won't test but makes them feel like it was engineered to last forever. By the time a subsequent owner finds out it really wasn't a lifetime thing, the car's out of warranty.

 

[itsaguything]

No, I don't have a workshop manual. For the trans filter, does this mean I need to replace the entire pan?

Thanks again! Much appreciated.

Cheers,

Dave

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