If the motor oil, and other gas engine lubricants and cleaners being sold at the dollar store have a lot of good user reviews from buyers who tried the product, and the motor oil and car lubricants and cleaner is compatible with my car, I would use car engine oil, and lubricants which is sold at the dollar store.
I try cheap motor oil, gas engine treatment, gas and fuel injector cleaner liquid and other car repair and maintenance liquids on a low performance economy car which does not need more high performance motor oil designed for expensive sports and luxury cars with more advance and powerful engines.
Changing the motor oil with a less expensive brand of motor oil from the dollar store is better than running a car with very dirty and old oil, or not having enough motor oil to properly lubricate your car.
But, I think gas treatments are not always worth it because gas from most gas station already contain some cleaning treatments to clean the fuel injectors on a car. They maybe worth it if you suspect your fuel injectors are very clogged from bad gas.
I try cheap motor oil, gas engine treatment, gas and fuel injector cleaner liquid and other car repair and maintenance liquids on a low performance economy car which does not need more high performance motor oil designed for expensive sports and luxury cars with more advance and powerful engines.
Changing the motor oil with a less expensive brand of motor oil from the dollar store is better than running a car with very dirty and old oil, or not having enough motor oil to properly lubricate your car.
But, I think gas treatments are not always worth it because gas from most gas station already contain some cleaning treatments to clean the fuel injectors on a car. They maybe worth it if you suspect your fuel injectors are very clogged from bad gas.
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