2019 CX-5 signature first oil change - conventional or synthetic?

V
2018 CX-5 Sport
WRONG OIL USED FOR TURBO

I need to take in my 2019 GTR for it's 2nd oil change soon so I was checking the previous report to see what oil they used... it was Castrol GT 0W-20 for the turbo...? even though the manual AND oil cap literally say 5W-30.

Why would they use the wrong oil? Could this damage the turbo/engine? Will it affect the warranty?
No, it wouldn't damage your engine if you change it at 5K miles or less especially if it is a cold environment outside. But that was a careless mistake the tech made.
 

sm1ke

Work In Progress..
Moderator
Contributor
L
Canada
V
'18 CX-9 Signature
WRONG OIL USED FOR TURBO

I need to take in my 2019 GTR for it's 2nd oil change soon so I was checking the previous report to see what oil they used... it was Castrol GT 0W-20 for the turbo...? even though the manual AND oil cap literally say 5W-30.

Why would they use the wrong oil? Could this damage the turbo/engine? Will it affect the warranty?
I don't know if it would affect the warranty since it was a Mazda dealership that did it, but in any event, you have to do your due diligence and make sure they're servicing your car correctly. If you have the time, I'd take it back and get them to put the correct oil in. That's a pretty significant oversight IMO. Regardless of whether the engine would be ok or not, it's not ok for them to get away with this. If you don't speak up, they won't be able to correct the mistake with your car and any other 2.5T CX-5 that comes in. Escalate to Mazda NA if you have to.
 

erhayes

Contributor
V
Mazda CX-5 FWD Touring
I guess you need to watch them put in the correct oil. I suspect no damage unless you pulled a trailer or WOT frequently. I would escalate this up to the dealer top manager and not just the service writer. This would make me mad. Ed
 

yrwei52

2016 Mazda CX-5 GT AWD w/Tech Pkg. Plano, TX
Contributor
L
Plano, Texas, USA
V
16 CX-5 GT AWD Tec
Great, thanks for the info.. will definitely be discussing this with them in the near future.
You should be able to ask for at least a free oil change with correct oil and oil filter due to the wrong oil been used. Make sure to get right oil filter, as it’s different from the one used in 2.5L.
 

Ronzuki

South Central PA
L
2018 CX5 Touring
V
w/ Pref Pkg
WRONG OIL USED FOR TURBO
Why would they use the wrong oil?
Incompetent, don't care, don't have the right stuff, wanted to charge more for the syn....pick your poison. My experiences would lean towards incompetent.

QUOTE="CL7, post: 6678550, member: 174629"]
WRONG OIL USED FOR TURBO
Could this damage the turbo/engine?
[/QUOTE]

How would you or anyone else know w/o a teardown to have a look see at the internals? If you weren't constantly hammering on the engine, I wouldn't think a one time mistake would be an issue, but, the stuff they put in is water thin. Continued use of the wrong oil however, would be a different story.

QUOTE="CL7, post: 6678550, member: 174629"]
WRONG OIL USED FOR TURBO
Will it affect the warranty?
[/QUOTE]

It certainly could give Mazda an excuse not to cover any engine lube related damage should you need the warranty in the future. Suzuki dealers would ask for all OC receipts before they did a teardown if they suspected internal issues. If you didn't produce receipts showing regular and proper OCIs, they wouldn't even go any further until you agreed that you were paying for the work. (dealers get burned all the time by the manufacturers for warranty work payment). If OCI receipts checked out, dealer would tear it down after getting approval from ASMC. They'd locate the issue and then contact ASMC again with the findings and for approval to continue at ASMC's expense. Regardless, if ASMC denied the claim, you were on your own negotiating (or fighting) w/ the dealer that did the work over who was paying for the teardown (already done), the repair, and reassembly. Now you're in to the 'how good is your relationship w/ your dealer' phase of negotiations and how forthright are they as a business. I'd certainly hold on to that receipt just in case. Depending upon how the Service Manager reacts to your asking why they used the wrong oil, you then may want to consider contacting Mazda directly and opening a case directly w/ them yourself so they are aware that one of their dealers used the wrong oil in their engine that is still under their factory warranty.
 

Latest posts

Top