PCMech Forums - View Single Post - Drop in MPG after spark plug and air filter replacement

**thefultonhow** · 03-15-2012, 08:05 PM

You want to replace the plugs with the appropriate NGK model. I have never heard of a modern Japanese car of any make running well on parts-store plugs, be they Autolite, Bosch, or something else. NGK run best on Nissans, they run best on Subarus, and I'd be very surprised if Mazdas, Toyotas, or Hondas were any different.

03-15-2012, 08:05 PM	#13
thefultonhow Moderator Staff Premium Member Join Date: May 2004 Location: Baltimore, MD Posts: 2,941	You want to replace the plugs with the appropriate NGK model. I have never heard of a modern Japanese car of any make running well on parts-store plugs, be they Autolite, Bosch, or something else. NGK run best on Nissans, they run best on Subarus, and I'd be very surprised if Mazdas, Toyotas, or Hondas were any different. __________________ Computer: Intel Core i5-750 2.66 GHz quad-core processor \| Asus P7P55D-E motherboard \| Crucial 4 GB DDR3-1333 RAM \| nVidia GeForce 7800GTX \| 2x WD Caviar Black WD1501FASS 1.5TB hard drives in RAID 1 \| Antec Sonata III case with Antec EarthWatts 500-watt PSU \| Dual Dell UltraSharp 2408WFP 24" widescreens \| Windows 7 Ultimate 64-bit Other: 2007 Subaru Legacy 2.5GT Spec.B 6MT \| Samsung Galaxy Note II Smartphone \| Mamiya M645 1000S medium-format SLR with 55mm f/2.8, 70mm f/2.8, 210mm f/4, teleconverter, 120 and 220 film backs \| Olympus E-PL1 Micro-4/3s DSLR with 14-42mm and 40-150mm lenses Last edited by thefultonhow; 03-15-2012 at 08:07 PM.