Mazda TSB for 2.5T Engines

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I know they needed torque. And, yes, turbo 4 makes it easy to fit into various applications, but IMO V6 would be better for CX9 etc. As for Toyota, as long as they skip 90% of vehicle, it might be actually good!


It used to have the 3.7 V6 from the Ford days but the 2.5 turbo has pretty comparable numbers so it’s not needed.
 
It used to have the 3.7 V6 from the Ford days but the 2.5 turbo has pretty comparable numbers so it’s not needed.
I get all that. And 3.7 was not some gem.
But, for CX9 targeted crowd etc. their own developed V6 would be better. I personally would go 2.5T.
 
I get all that. And 3.7 was not some gem.
But, for CX9 targeted crowd etc. their own developed V6 would be better. I personally would go 2.5T.


I don’t think Mazda is thinking about a V6. They do have the 3.0 inline six but that is for particular models.
 
My CX 5 turbo only used about a quart of oil for the first 5000 miles and then settled in nicely and used maybe a half quart for the next 5000 miles. I am pleased with the performance of that engine but sure would like a normally aspirated straight six with about 300 HP. I think that would be a winning combination especially if it had a lot of low end torque.And they should return to RWD or AWD with bias towards the rear rather than the front.

I am not worried at all about the oil consumption issue that has been reported, but the coolant leak TSB has me concerned and keeping a close eye on it. In the summer months daytime temps are often close to 110 degrees in the desert areas that I drive through and a coolant leak would spell disaster rather quickly.
 
My CX 5 turbo only used about a quart of oil for the first 5000 miles and then settled in nicely and used maybe a half quart for the next 5000 miles. I am pleased with the performance of that engine but sure would like a normally aspirated straight six with about 300 HP. I think that would be a winning combination especially if it had a lot of low end torque.And they should return to RWD or AWD with bias towards the rear rather than the front.

I am not worried at all about the oil consumption issue that has been reported, but the coolant leak TSB has me concerned and keeping a close eye on it. In the summer months daytime temps are often close to 110 degrees in the desert areas that I drive through and a coolant leak would spell disaster rather quickly.
Inline six is way to go. But you ain’t gonna see it in CX5 as long as it is made for crowd that wants bit more excitement over RAV4. If they were to put that in CX5, they are entering X3, Q5 territory and price of such model will reflect RWD, longitudinal platform. Would be interesting to see.
 
Toyota, Honda, VW, Hyundai etc. all kept V6’s for that crowd. Turbo is really not good choice for them.
Sure, on the bigger platforms like the Pilot, Highlander, etc... but doubt that'll last forever... even VW dropped the 2.0T on the base Atlas, which seems silly to me... every platform will eventually ditch NA and go turbo, it's the natural progression in this enviornmentaly concise world we live in, whether we like it or not

Also, just had a look, and you can only get the V6 (VR6) on the top trim Exceline Atlas (at least in Canada)
 
Sure, on the bigger platforms like the Pilot, Highlander, etc... but doubt that'll last forever... even VW dropped the 2.0T on the base Atlas, which seems silly to me... every platform will eventually ditch NA and go turbo, it's the natural progression in this enviornmentaly concise world we live in, whether we like it or not

Also, just had a look, and you can only get the V6 (VR6) on the top trim Exceline Atlas (at least in Canada)
VW is running that engine since 2010. I would say they figured whether it can sustain that regime. IMO it is better option than VR6.
I am not arguing which one is better or not. I would personally go 2.5T instead of V6.
But, rudimentary V6 in this crowd IMO is better option. Toyota has 2.0T in Lexus (nothing special) but they still push 2.5 naturally aspirated engine in Sienna etc.
 
We are doing one now. The gasket kits are on backorder. There are 4 gasket sets required, 2 I had in stock and received about 20 calls a day from dealers wanting to buy them because we were the only ones west of the Rockies to have any on hand.
 
We are doing one now. The gasket kits are on backorder. There are 4 gasket sets required, 2 I had in stock and received about 20 calls a day from dealers wanting to buy them because we were the only ones west of the Rockies to have any on hand.
So breaking news: just had our Mazda master tech come in and order another set. Unfortunately Mazda limits me to 1 set per week, so this person will have to wait a week for me to even order the parts. Both had casting flaws in the head.
 
So breaking news: just had our Mazda master tech come in and order another set. Unfortunately Mazda limits me to 1 set per week, so this person will have to wait a week for me to even order the parts. Both had casting flaws in the head.
Is this for the coolant leak problem or valve stem seal (oil consumption issue) from the TSB posted?
 
The coolant leaks only apply to:

APPLICABLE MODEL(S)/VINS US Spec.: 2019-2020 CX-5 SKYACTIV-G 2.5T vehicles with VINs lower than JM3KF******830243 (produced before Jun. 9, 2020) 2016-2020 CX-9 SKYACTIV-G 2.5T vehicles with VINs lower than JM3TC******422801 (produced before Jun. 9, 2020) 2018-2020 Mazda6 SKYACTIV-G 2.5T vehicles with VINs lower than JM1GL******523967 (produced before Mar. 25, 2020)
 
My next question is would they use different stems for the turbo version and why?
Good question. This is where I'm confused, too. This TSB is for turbo equipped motors and not the naturally aspirated. I'm assuming we are talking valve stems, and are they different on each model? At first I though the turbo shaft/stem but no way.
 
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