[jimlloyd40]

I just switched to Cerma Evo oil. On first change to this oil so no results yet. I'll check the catch can and post again after some mileage. Something to note on the spark plugs is that the 2016 models come with a heat range 8 spark plug. The NGK 1422's are also a heat range 8 so switching to those is a waste of money and also detrimental because the reach is much shorter than the stock plugs and the resistance is 10 ohms vs 5 ohms in the stock plug. I found this out the hard way when after installing the NGK 1422's after about 500 miles I got a CEL for a misfire and removed the plugs and found that they were fouling . I went back to the stock plugs and all was well. NGK doesn't currently have a colder plug for the 2016 model.

 

[jimlloyd40]

Interesting info, thanks.

Can you post a picture of one of your factory '16 plugs clearly showing the NGK part number?

I don't have a picture but the stock plugs are NGK-SILZKR8E-8G

 

[jimlloyd40]

So much conflicting information out there... I guess I'll have to see how my 1422's workout with my tune and cross that bridge if I come to it.

You should be fine with a 2015 model. It's just on the 2016 model that they switched to a 8 heat range plug. Mine is tuned also, stage 1 Tork. The 1422's are 8 heat range also so the difference is the resistance 5 ohm vs the 1422 10 ohm resistance. The reach on the stock plugs is 5 mm and the 1422 reach is 3.5 mm. The physical difference is that the stock plug electrode extends much further than the threads vs the 1422's. Why the 1422 fouled and set a CEL would be up to an expert to explain. Obviously it has to be due the resistance and reach. All I know is that if you have 2016 model you should just keep the stock plugs.

 

[jimlloyd40]

Cerma Evo oil