motor oil
5

Asked by Doug Aug 10, 2016 at 07:57 PM about the 1999 Pontiac Grand Prix 4 Dr SE Sedan

Question type: Maintenance & Repair

i have a 1999 Pontiac Grand Prix SE with the 3100 motor that has 137xxx miles on it and it calls for 10W-30 but the place that did the oil change put in 5W-30 oil in it. will this effect the car in any bad way?

2 Answers
157,335

Bob answered 7 years ago

Don't worry about it as it will not hurt anything. The 30 number is more important the the number before the "w".

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Robert answered 5 years ago

Hehe, the 5W-30 will make it easier to start in the winter time :)

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