Gen 2 KIA NIRO GDI injector port images with endoscope

[@drnda2007]

It is recommended by many that some spray like CRC is sprayed into intake at every oil change. Since you've already removed intake manifold, did you use CRC or similar? I am planning to do it but so far I was not able to find out how to turn engine on which is required if this kind of spray is used. I believe that good bi-directional scan tool could turn the engine on and probably set the rpm as well. Using carbon cleaner is good preventative measure for GDI engines together with using good oil and gasoline.

[@chrisi1920]

Nice photos of the combustion chamber. Are you seeing any differences in the accumulation of carbon across the cylinders or differences in the location of the carbon? Also I wonder if the spark plugs show any differences and if that relates to what you see within the cylinders. Probably with relatively low mileage on the engine minor differences might not be apparent. The reason why I ask is because sometimes engines have cylinders that run hotter or colder than others, maybe intake or exhaust tuning is slightly different (manifold length, EGR, cooling fluids etc.). It'll be interesting to see how things look after a year or two. Thanks for reporting your findings!

[@KiaNiroPluginHybrid]

Hi, thanks. I will reshoot a video that is more clear and comprehensive in the future. I did pull the plugs before every really taking a long road trip and saw some carbon striping on the cylinder 3 plug and I think it was to the PCV valve located near by. I think this gas from the crankcase just wasn't getting hot enough to thoroughly burn up. I also noticed some carbon starting to build on the intake valves in cylinder 4 (I could get a good look at 1.2.3 because the were closed or near closed. Look forward to putting more data and images together soon. I've been impressed with the engine overall, but have still not received my lab results from my first and second oil change from Blackstone Laboratories. I will report back as soon as they come in. Thanks for watching!

[@drnda2007]

Have a same car, great videos you put there; have to say not sure what pictures you had at the end actually show? I do not see valve picture taken from top as I don't see valve stem. My Niro is at 8400km and I am thinking of doing the same thing even though it is really to early to check for carbon build up. Car owners manual suggest using "Tier 1 unleaded gasoline 91 or higher octane". What gasoline do you use? Manual also suggest that "bottle of additive is added to the fuel tank every 13,000km (8000 miles) if you don't use TOP TIER Detergent gasoline. What kind of additive is that if you know? Some people comment that those detergent actually do nothing as fuel is injected directly into cilinder and fuel does not 'wash' cilinder head. I'd say good fuel sure helps as it burns better, so less carbon. Some say bigger issue with GDI are very expensive injectors rather than carbon build up but what do you plan in doing to reduce carbon? I know that engine in Niro plug-in does not work much compared to hybrid Niro but not sure if that is good or bad thing in terms of carbon. thanks

[@KiaNiroPluginHybrid]

Hi, thanks for the great comment and your insights. Yeah, geez, this car has been great for the family and me, but I wish they didn't go with a GDI design. Well, when you want to get every possible mile out of a 'drop of fuel' as was the ambition of the Niro and a quote from KIA's CEO, you end up with a GDI I suppose. Our Kappa II engine shoots that fuel in at about 280psi. I'm treating the tank with a LUCAS brand fuel treatment about once a month...every 3rd tank up or so. Using the AMSOIL hybrid OW-16 oil and have had 3 oil change samples tested with satisfactory results. Man I really like the way they layed out the power train. Thank 80hp electric motor is really perfect. I'm hoping at 80-100k miles there isn't a black crusty mess waiting for us on the back side of those intake valves. I run the car in sport mode occasionally and push it a little for say 15-20 miles on the way how from work. I believe it is higher temps that help the carbon release. I plan on getting a the endoscope on this piston heads soon for a comprehensive review on the channel soon. Thanks so much

[@drnda2007]

@@KiaNiroPluginHybrid Thank you for reply! My car is fine so far, getting ready to put some fuel in it and will for sure put some fuel treatment, even though they say it is not required if good fuel (Top Tier) is used. Double clutch solution is getting bit milky at close to 9000km so will replace it, your video on that is also very usefull. I've bought this car with 8700 km on it, Kia certified and inspected. Oil was replaced but they obviously didn't bother replacing clutch fluid as it was not due. I think we are really not sure if bit of residue in it is really that bad, but since it is not to expensive or complicated - why not. My biggest dissapointment is not the car itself, but the fact that I live in a building and strata refused me to use outlet that is just next to my car. Electricity is my profession and I've checked builiding panels and I know there is no any issue in doing so, especially as you can set charge current to lower value (say 8A). When weater is ok and there is no rain I can bike or walk to 2km L2 charing station, only one in vicinity where you don't have to pay addiitonal parking fee. You realize that those cars are not really practical if you don't have your own house. If driven in hybrid mode only, consumption can be so low that actually gasoline gets cheaper than public L2 charger especially as they charge by hour not kWh .. and charging Niro is rather slow, even on L2. cheers!