Going from synthetic back to regular oil

Tiny
LAULA
  • MEMBER
  • TOYOTA COROLLA
I have a 99 Corolla, automatic with 115000km and just bought it from the dealer about 5 months ago. Took it in for an oil change last month and wasn't thinking straight and told the guy to put synthetic in instead of the regular 10w30. My old car had synthetic and now this car does! I didn't want to put synthetic in and didn't realize till after what happened! How can I change back to regular oil without ruining the engine? Flush it out? Is it worth keeping synthetic in?
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Thursday, August 2nd, 2007 AT 10:44 PM

4 Replies

Tiny
SERVICE WRITER
  • EXPERT
If money is no object, use the synthetic. I think it is better. However, money is an object for me and I also believe if you stick to 3month/3000 miles on the oil change, you'll be fine. I would just change it when it's due and go back to the conventional oil. I would give any engine damage a second thought about the mix.
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Friday, August 3rd, 2007 AT 4:48 AM
Tiny
LAULA
  • MEMBER
So you don't think it'll damage the engine then? Because I do follow the regular oil changes, but everyone has told me that once you switch to synthetic you can never go back.
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Saturday, August 11th, 2007 AT 2:33 AM
Tiny
MMPRINCE3000
  • MEMBER
Synthetic oils have a much higher temp. Rating, i.E. They can withstand much higher operating temps. Before breaking down.

Whoever told you that once you switch you can never go back, doesn't know what they are talking about.

As Service Writer said, change your oil/filter every 3000 miles and switch to regular oil if you want.
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Sunday, August 12th, 2007 AT 4:07 AM
Tiny
SERVICE WRITER
  • EXPERT
Don't give it another thought. The Oil filter is the weakest link of the chain if anything.
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Sunday, August 12th, 2007 AT 7:11 PM

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