i have a nissan altima 2.5s , ive done a lot of things to it recently but nothing seems to fix the issue. new battery , starter , spark plugs , oil change , oil filter , air filter , thermostat , pcv valve , pcv valve hose , but now the car is smoking out the exhaust ( not a whole lot of smoke but more than what should be coming out ) smells like either rich fuel or burnt oil , not antifreeze , also i have a little bit of white stuff on my oil cap and around the edge of the thing you fill with oil, none on the dipstick at all, my car is not overheating at all. im just lost as to what can cause white smoke smelling burnt , white stuff on oil cap? theres no sure signs of blown headgasket so i dont want to do that work and its not even needed.
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