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I looked into that at one point but did not have the courage to test it on my new 07 Maxima. I wish someone in this forum can try out on an old car and see if what they are saying is really true. BTW, there are many such additives that claim to increase mpg substantially but few really do. But you never know until you try, this might work!
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2009 Maxima SV with Luxury Package
2007 Maxima SL with Platinum Edition Package, Vehicle Dynamic Control and Full-size Spare, Power Glass Moonroof, Moonroof Wind Deflector. Precision grey exterior, charcoal interior. 100% stock, 35% FormulaOne Pinnacle tint. (Traded)
1997 Altima GXE. 98k miles [sold]
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