First time I’ve seen a dealer turn down money.
Is it okay to switch my CX-50 to full synthetic 5w30?
5w30 is what’s in it now, it is just Mazda oil (whoever makes it). I think it may be a blend, but no one has comfirmed.
MazdaUSA on Twitter hasn’t replied to me in a year, so I will try here.
No one knows what type of oil dealer put in your engine . On paper it ok.
The OEM oil is supplied by Total. You can use any other brand oil if it matches the required viscosity AND specifications.
I recommend Castrol edge with OEM filters. Put a fumoto valve on and diy changes will be a breeze.
This is the way, Castrol Edge 5w30 with the OEM oil filter and fumoto valve. Changes take like 20 min from start to going back to the couch
Castrol and Mobile 1 consistently rank the worst on tests.
Castrol does not, stop spreading misinformation. Blackstone has tons of data across different platforms showing Castrol does as good as premium oils such as motul and amsoil.
Look in your owner’s manual. Should be a chart that tells you the requirements for oil specs. You don’t have to stick with what they say off the lot.
Cars with the same engine are all over the world and require different weights for those climates.
It does give the weight and certifications. Nowhere does it say conventional, blend, or synthetic.
I have the turbo, 24 is coming in Monday.
Due to the recent flakiness around that engine in the CX-5, I would do exactly what the book says.
Yes, that’s fine, just don’t ever exceed 5kmi oil change interval, that’s much more important.
5k KM is for severe usage. So it means you idle a lot or are driving the car in a hard o aggressive way. That’s what my manual says for my 2011 3. And that’s what I do. 5K Km changes because I wait a lot in idle because I live in a hot climate and need the AC on.
I’m no mechanic or dealer tech, but full synthetic oil has a longer usage life in terms of km and wear and tear protection than non synthetic blends. That means you get less km per oil change if you stick to non synthetic. More trips to the dealership for over priced oil changes. Buy your own oil and change it yourself with full synthetic unless the car is still under a maintenance plan and are free
The weight of the oil is the most important. Stuck to 5w30 if that’s what the book says. Your car runs the exact same with both non and full synthetic, only difference if full synthetic doesn’t break down faster and has longer lasting detergents to clean and lubricate your engine for longer and hotter engine temps
I’ll be blunt - fuck this dealer.
Do your own oil changes with any synthetic. Supertech from Walmart, Kirkland from Costco, Pennzoil Ultra Platinum from an auto store, they’re all good enough for the CX-50. You’ll save a ton of money. Or, if you really don’t want to do your own oil changes, take it to any independent shop to do your oil changes and bring your own oil and filter in (use the OEM Mazda filters made in Japan or Thailand). Synthetic is a better oil by far, and when the oil is on sale, the price difference is negligible, especially if you go with brands like Supertech or Kirkland. The only reason they want you to keep using the Mazda blend is because they can make more money from you using the cheaper oil that they get in bulk, and recommend a shorter oil change interval to get you in there more often.
Use synthetic oil, do your own oil changes, and follow the basic maintenance outlined in the Scheduled Maintenance section of your Owner’s Manual. Keep a log of your maintenance and/or keep all of your receipts and invoices for any parts or services you buy.
For any turbocharged engine, I would highly recommend using full synthetic.
Exactly what I think. I already do oil changes every 5K.
Since Mazda USA on Twitter wouldn’t respond, I did send the question via their support website. It is so old that it doesn’t have CX30, 50, or 90 as a selectable vehicle. I picked CX5 and explained myself in the body of the email.
I’m going to do synthetic, but I do want to understand why they recommend this.
It’s less expensive to do a blend vs synth. The 2.5T was the first turbo I encountered with non-synth oil. Synth only for turbos.
Mazda branded oil is full synthetic.
They told me the original oil is a blend. It came out of a Mazda branded bottle. I don’t know who makes the oil for them. Synthetic oil changes are $20 more and they were adamant I should use the lower priced Mazda blend, since that is what it came from the factory with.
Mazdas oil is 0w-20 here in Canada, it’s full Synthetic of course, they don’t even offer a blend or non synthetic for their ‘newer’ vehicles. Like others have mentioned, you can use full Synthetic at any point, I jave no idea why that goomba is saying not to. It’s also your money. Costco has full Synthetic oil changes for 65$ in Canada. That’s what I used to get before I went Ev.
100% this.
I’v had my civic for 8 years and I’v done 2 oil changes every year for the whole ownership. About 90% of the oil changes were made at costco (always synthetic). Never had ANYTHING happen to my engine; never had to do any repairs. Hope this can reassure OP.