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Is it a problem if I put 5w-20 in my '99 Camry


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WendigoKing
New User

Jul 16, 2020, 4:51 AM

Post #1 of 8 (328 views)
  post locked   Is it a problem if I put 5w-20 in my '99 Camry  

     I have a '99 Camry. I topped it up about 2 months ago (after its last oil change) with 5w-20 instead of 5w-30; I added 5w-30 after I noticed my mistake (two weeks ago). I haven't noticed anything that seems to indicate a problem or damage, however, I have had two very bad experiences with oil-related engine damage before; I've also read that temperature impacts oil effectiveness, and it's been in the 80-90 degree range where I'm at lately.

I would like to know if my paranoia regarding the situation is justified, and if so, what I should be keeping an eye out for.

Edit: I'm going to see about having the oil changed today. I check the oil fairly regularly and make sure it doesn't run low. That's how I realized that one of the quarts I'd bought was 5w-30. I appreciate the prompt responses I've already received. Thank you!


(This post was edited by WendigoKing on Jul 16, 2020, 6:09 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 16, 2020, 5:30 AM

Post #2 of 8 (322 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

Should be fine if it's still rated oil for 1999 is long enough ago there are several more. The higher #, #30 of that just means it will stay more viscous (thicker) at higher temps much newer is going to lower #s because it's faster now (within 25 years) as machine work is closer tolerance.
More than you needed to know the real deal is do change oil and this old QUIT TRUSTING WARNINGS THAT IT NEEDS ONE QUART CRAP THOSE FEATURES FAIL SO CHECK IT BY DIPSTICK AND TRACK HOW MUCH IS CONSUMES!


It shouldn't consume oil but age/miles can NORMALLY now for YEARS more NOT if you let it go too low is why you are wrecking engines not just that problem listed,


T



Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 16, 2020, 5:32 AM

Post #3 of 8 (322 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

The combination of low viscosity oil and high temps is not a good combination. I would suggest getting an oil change as soon as possible.

The damage done by this situation is long term, permanent damage. You are shortening the life of the engine through excessive wear.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 16, 2020, 5:51 AM

Post #4 of 8 (315 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

It said "added just one" I thought? IF so I still say fine it's due in a few weeks for a whole change IMO, Tom


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 16, 2020, 6:03 AM

Post #5 of 8 (305 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

I didn't read anything that said just 1. I don't even know if it has the correct level now because he stated he went back and added some 5W30 after realizing his mistake.

The only safe thing to do now is do another oil change with the correct level and viscosity of oil.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 16, 2020, 6:35 AM

Post #6 of 8 (291 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

I re-read 10 times and confused how many of what has happened. Seemed only JUST after an oil change it needed oil? That's messed up from then.
Time to just dump it all, new filter and put what it calls for in to the right level like any machine of any type the suggestions of what to use and service periodically are well thought out if read carefully, Tom


White Trash CVP
User

Aug 29, 2020, 4:04 PM

Post #7 of 8 (133 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

I personally wouldn't worry about it .. even a full crankcase full of 20 instead of 30. Maybe on a two million dollar Bugatti, a flat cam pushrod engine - or if you put 75W gear oil in. But a daily driver OHC Toyota?

Rated viscosity is an engineering trade off. Low viscosity oils have a lower shear modulus, run cooler, and will remove heat from internal components faster - but at the expense of dynamic load bearing.

In a "perfect" world your rings would see 15W, and the main bearings 50.

I regularly use non factory recommended weights depending on what I'm doing with the vehicle, it's age, etc.

Many manufacturers would even specify different multigrades depending on where the vehicle was sold.

Unless it's actually burning it .. high mileage valve seals, etc. I'd just shrug and go to the next service interval.

But that's just my opinion.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Aug 29, 2020, 4:34 PM

Post #8 of 8 (126 views)
  post locked   Re: Is it a problem if I put 5w-20 in my '99 Camry  

This thread is dead if over a couple weeks I/we just forgot to lock it, now locked OP and come back if needed to refresh it,


T






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