u/The_Cromulent_Bison

Greetings,

I need to upgrade my RO system to increase daily output. Since the water pressure is inadequate, I’ll also need a new booster pump. My questions are:

1.      Must the GPD rating of the RO machine match the GPD rating of the booster pump?

2.      What is the correct/maximum pressure I should be hitting when using the two machines together? 65PSI? Higher?

3.      Will the two products below work well with each other?

Here is the RO system I’m considering:

https://www.hydrologicsystems.com/products/stealth-ro-300

Here is the booster pump I’m considering:

https://a.co/d/0coeqbwO

 

S10E03

I purchased my 2024 S60 B5 from a non-Volvo dealership and I also have it serviced there. I’m concerned that they may be using an inadequate oil, but I could be wrong. Volvo requires “0w-20 full synthetic” oil. The product the dealership has been using is 0w-20, but it’s listed as a “synthetic blend” on the worksheet (see attached image). I was under the impression that all 0w-20 oil was synthetic, but apparently it’s not. My questions are:

 

1.      Is this appropriate oil for the vehicle or not?

2.      If not, could this have caused any damage to the vehicle?

3.      If so, can the damage be reversed or mitigated by switching to the correct oil?

 

The vehicle has 15,202 miles on it and it’s received 4 of these oil changes over the past two years at six-month intervals. If more information is needed, I’m happy to provide it as best I can.

 

NB: I’m not looking to cause trouble for the dealership, as I’ve had an otherwise very pleasant experience with them. If this truly is a mistake, I doubt it was intentional. However, I need to document anything that might impact any remaining manufacturer’s warranty or the additional 100k-mile service contract I purchased when the car was delivered.