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post #1 of 11 (permalink) Old 11-02-2009, 04:05 PM Thread Starter
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5W-20 Instead of 5W-30

I recently did an oil change in my 2005 Chevy Cobalt (base model). I always use full synthetic. I accidentally grabbed 5W-20 and 1 quart of 5W-30. When I did the oil change, I caught the mistake but used the quart of 5W-30 first then finished with the 5W-20. Will this hurt anything until my next oil change or should i get drain it back out and get 5-30??
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post #2 of 11 (permalink) Old 11-02-2009, 05:59 PM
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DRAIN IT IMMEDIATELY ELSE YOU'LL SEIZE THE ENGINE AND WILL HAVE EXPENSIVE REPAIRS $$$$$










Nah, it won't do anything bro, that's just the velocity it flows at when it's hot.. not recommended but it'll work. Personally I'd just go to walmart, grab a 5qt jug of Mobil 1 Full Synthetic 5w30 oil for like $22 bucks and change it... tip for the future, don't buy oil in quarts if you're doing a full oil change, will cost you much more than a 5qt jug. Quarts are like what... $6 each? Figure $6 x 5qts = $30/5quarts. 5qt jug at walmart of Mobil 1 = $22 so there you go, save 8 bucks you can use towards a filter.

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post #3 of 11 (permalink) Old 11-02-2009, 07:32 PM
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You save unless there is a special going on.... I just got 5 quarts for Castrol GTX 5w30 for $10.00 and the 5 quart jug was $13.50....
 
post #4 of 11 (permalink) Old 11-02-2009, 07:40 PM
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You save unless there is a special going on.... I just got 5 quarts for Castrol GTX 5w30 for $10.00 and the 5 quart jug was $13.50....
Don't know much about normal oil, I know that's how synthetic goes... compared it at Napa, national auto, advance auto parts and walmart. Getting a 5qt jug at walmart came out to the best price.

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post #5 of 11 (permalink) Old 11-02-2009, 08:17 PM
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You save unless there is a special going on.... I just got 5 quarts for Castrol GTX 5w30 for $10.00 and the 5 quart jug was $13.50....

Great.... Where did you get that deal?

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post #6 of 11 (permalink) Old 11-02-2009, 08:21 PM
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i always wait for a specil on oil and filter and my that lol

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post #7 of 11 (permalink) Old 11-02-2009, 08:26 PM
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Great.... Where did you get that deal?

GTO 1
Please don't put regular oil in a SS/TC

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post #8 of 11 (permalink) Old 11-02-2009, 08:30 PM
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^^ its not an SS/TC he just has TC wheels



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post #9 of 11 (permalink) Old 11-02-2009, 09:47 PM
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Since the question was answered, I got my oil changed at the dealer and it was changed to 10W-30? Opinions on this?

Tom.

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post #10 of 11 (permalink) Old 11-02-2009, 10:08 PM
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Yeah, it's ghey... 10 is the rate it'll flow at while car is cold... so don't take off while engine is still cold.. I run 0W30. I'm an EMS so when I'm on call, often I don't have time to warm up and just hop in the car and go, hopefully 0 flowrate will help my engine from getting worn out much from cold runs.

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