Wanted to upgrade the 2017 corolla SE (cvt), engine spark plugs.
Currently Denso doesn't offer any available upgraded IRIDIUM plugs. I took out the oem stock plugs, Denso SC16HR11.
And replaced them with Pulstar gg1h10. I emailed Pulstar for the correct part#.
I gapped the Pulstar to oem spec 1.1mm. Be ready to have a 14mm (12point) spark plug socket. Because the Pulstar's body is 12pt (like some Audi & BMW). Torqued to spec. Reset factory ecu.
Engine has more power! Easy to reach 90mph!
Lost mpgs. From 34mpg(granny style driving) to 28mpg(granny style driving).
Granny style driving = keeping engine rpms under 3K (yes, even on hwy!).
A few days after Pulstar spark plugs install. The engine would STUTTER around 1k- 2k engine rpms! Just a few times. Ever since car was new from Dealership, I've always fuel up with premium fuel. I told myself it can't be the fuel. I've got 5.5k mileage on this new engine so far. And changed oil at 2.4k.
Drove another 1k with the Pulstar spark plugs. I assumed after 3 gas tank the ecu will adjust to the Pulstar and gain, the promised mpgs! Because Pulstar's installation instructions said,
"Typical computer- controlled vehicles need to use one tank of gas before the benefits of Pulstar spark plugs can be seen."
After the few low engine rpm stutters. And NO MPGS GAINS. I took out the Pulstar. And replaced them with Denso FXU16HR11.
The FXU16HR11, is an iridium long- life plug. I'll let ya know how it goes.
********************************************
The Pulstar gg1h has a larger ceramic core than the oem SC16HR11.
The new FXU16HR11 has a hex nut size of 16mm (5/8) and not 14mm like the oem SC16HR11. Also the FXU16HR11 has a larger ceramic core like the Pulstar, which will make your COP boot stretch a little bit and over time degrade/ stuck rubber boot! Plus no runs on ceramic core to prevent sticking on boot.
If you plan to do this upgrade use Denso FXE16HE11. Because FXE16HE11 has same 14mm hex nut size and same size ceramic core as oem SC16HR11!
It's perfect fit, but cost over $100 from outside USA! WTH Denso dealers?
But I've searched like crazy, and the oem Nissan Dealerships might have this rare plug (rare to me, cuz I can't get from local denso Dealer and off eBay and Amazon).
left oem. Right Pulstar.
Pulstar alone.
Sorry i didn't take pics of all three plugs. I was in a hurry before temperature outside reached freezing.
Currently Denso doesn't offer any available upgraded IRIDIUM plugs. I took out the oem stock plugs, Denso SC16HR11.
And replaced them with Pulstar gg1h10. I emailed Pulstar for the correct part#.
I gapped the Pulstar to oem spec 1.1mm. Be ready to have a 14mm (12point) spark plug socket. Because the Pulstar's body is 12pt (like some Audi & BMW). Torqued to spec. Reset factory ecu.
Engine has more power! Easy to reach 90mph!
Lost mpgs. From 34mpg(granny style driving) to 28mpg(granny style driving).
Granny style driving = keeping engine rpms under 3K (yes, even on hwy!).
A few days after Pulstar spark plugs install. The engine would STUTTER around 1k- 2k engine rpms! Just a few times. Ever since car was new from Dealership, I've always fuel up with premium fuel. I told myself it can't be the fuel. I've got 5.5k mileage on this new engine so far. And changed oil at 2.4k.
Drove another 1k with the Pulstar spark plugs. I assumed after 3 gas tank the ecu will adjust to the Pulstar and gain, the promised mpgs! Because Pulstar's installation instructions said,
"Typical computer- controlled vehicles need to use one tank of gas before the benefits of Pulstar spark plugs can be seen."
After the few low engine rpm stutters. And NO MPGS GAINS. I took out the Pulstar. And replaced them with Denso FXU16HR11.
The FXU16HR11, is an iridium long- life plug. I'll let ya know how it goes.
********************************************
The Pulstar gg1h has a larger ceramic core than the oem SC16HR11.
The new FXU16HR11 has a hex nut size of 16mm (5/8) and not 14mm like the oem SC16HR11. Also the FXU16HR11 has a larger ceramic core like the Pulstar, which will make your COP boot stretch a little bit and over time degrade/ stuck rubber boot! Plus no runs on ceramic core to prevent sticking on boot.
If you plan to do this upgrade use Denso FXE16HE11. Because FXE16HE11 has same 14mm hex nut size and same size ceramic core as oem SC16HR11!
It's perfect fit, but cost over $100 from outside USA! WTH Denso dealers?
But I've searched like crazy, and the oem Nissan Dealerships might have this rare plug (rare to me, cuz I can't get from local denso Dealer and off eBay and Amazon).
left oem. Right Pulstar.
Pulstar alone.
Sorry i didn't take pics of all three plugs. I was in a hurry before temperature outside reached freezing.
