What is this Sorcery?

C

CX-5um

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13' CX-5 and 16' Mazda6 both Touring w/Tech/Bose

• May 3, 2018

• #1

Calling all skyactiv Guinea pigs to please try this. Spray into PCV valve in 2-second interval sprays while idling set to 2k rpms, allow to heat soak a few minutes, drive off to burn off gunk, change oil, report back to the forum (idhitit).

Any Guinea pigs other there!?!?!

 

I

isketerol

Contributor

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Mazda CX-5 GS 2018 AWD

• May 3, 2018

• #2

Methinks this may be snake oil.

 

J

jeffrow925

:

Carless

• May 3, 2018

• #3

CRC is a known brand and it probably has benefits for the first 100 miles then wears off. It’s not going to do power and mpg gain based off a liquid spray.

A cleaner engine should deliver those gains until it gets dirty again

 

Arcticshade

Contributor

:

2017 CX5 GT AWD w/ PP & 2016.5 CX5 GT AWD w/ Tech and Nav

• May 3, 2018

• #4

It is snake oil. I love my dealer's service department but every oil change they try to sell me this crap for like $200. Tell them NO time and time again.

Think about this for a second - if gas isn't "washing" over the valves in a direct injection why would there be crud build up on the valve in the first place? The gas isn't going over the valve!

 

Natey

Moderator

Contributor

Patron

• May 3, 2018

• #5

That's a great point. Another thing to think about: If it does what he says it does, why hasn't Mazda figured out how to put some in themselves?

 

C

CX-5um

:

13' CX-5 and 16' Mazda6 both Touring w/Tech/Bose

• May 3, 2018

• #6

Makes me wonder just how much crud is in a typical GDI engine valves. Haven't noticed lost in performance yet in two skyactiv engines. One with 40k miles the other 84k miles. I guess living in a hot environment and not doing short frequent trips helps.

Then again I redline at least once a week. As Mazda said, the best way to combat deposits is getting to operating heat range. Is that why the initial startup idle is higher?

 

Arcticshade

Contributor

:

2017 CX5 GT AWD w/ PP & 2016.5 CX5 GT AWD w/ Tech and Nav

• May 3, 2018

• #7

My opinion is as long as you change your oil regularly, you won't have any problems with crud or build up.

I'm not 100% sure about the second part of your question CX-5um, but I believe the initial start up idle is higher to warm up the catalytic converter. It has the side benefit of warming up the engine quickly as well

 

Chris_Top_Her

Banned

Moderator

Contributor

:

San Antonio, Texas

:

'15 CX-5 Miata AWD

• May 3, 2018

• #8

only way to reduce the buildup on the intake valve is an oil catch can. This stuff costs like $10.. I've used it twice before. Easier than taking off the intake manifold just to have a look.

 

Chris_Top_Her

Banned

Moderator

Contributor

:

San Antonio, Texas

:

'15 CX-5 Miata AWD

• May 3, 2018

• #9

For those still not sure about DI here is a video that goes over the different methods and pro/cons.. specifically around the 6 min part they talk about DI.. but it's worth watching from the start

 

C

CX-5um

:

13' CX-5 and 16' Mazda6 both Touring w/Tech/Bose

• May 3, 2018

• #10

Chris_Top_Her said:

only way to reduce the buildup on the intake valve is an oil catch can. This stuff costs like $10.. I've used it twice before. Easier than taking off the intake manifold just to have a look.

Click to expand...

Yo Chris, did you buy a DIY kit and retrofitted it? Drop the knowledge man..I would be interested.

 

Chris_Top_Her

Banned

Moderator

Contributor

:

San Antonio, Texas

:

'15 CX-5 Miata AWD

• May 3, 2018

• #11

CX-5um said:

Yo Chris, did you buy a DIY kit and retrofitted it? Drop the knowledge man..I would be interested.

Click to expand...

I bought a jbr kit but some of the hoses were improperly sized (3/8 vs 5/8) because of differences in the 2.5/2.0l engine on different models. This was like 2 or more years ago so maybe its corrected now. CS has one too, and noth have instructions on their website which could be used with a generic kit as well.