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5w20 engine oil is Honda's new standard. But is it right?

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Old 04-05-2012, 06:57 PM   #1
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Default 5w20 engine oil is Honda's new standard. But is it right?

Honda is putting this oil in all of their new vehicles. They're even putting it into older cars, such as the 06-11 Civics and Accords. I know that they switched to it for CAFE standards and all, but it seems deceptive. When you bring you 2006 Civic Si in to Honda for an oil change, odds are that the "bulk oil" they throw in will be 5W20, and not the 30 weight that the car calls for. What do you guys think about this? Do you think 20 weight is good enough, or is it all based on slight gas mileage gains with no regard for pre-mature engine wear?
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Old 04-05-2012, 07:00 PM   #2
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

Yes really you should use 0w-20, I use it in my s2k
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Old 04-05-2012, 07:03 PM   #3
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

Read the owners manual.
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Old 04-05-2012, 07:04 PM   #4
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

5w20 is better for cold starts, but doesn't 5w30 beat it in nearly every other area? I just think it's odd that Honda themselves developed cars around 5w30, but are now switching to 5w20 just to meet CAFE standards. I really wonder how much wear is being done to a 2006 Si that's meant to run 5w30, but the dopes at Honda are throwing in 5w20 since that's the oil they have in bulk and it costs them less. They don't care how long your car lasts, just as long as it lasts the length of the warranty.
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Old 04-05-2012, 07:04 PM   #5
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by __oversea View Post
Read the owners manual.
I have. Best friend's Si calls for 5W30. Took it to Honda and they put in 5W20
"Bulk oil".
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Old 04-05-2012, 07:05 PM   #6
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

The Honda parts dept had a mat on the counter with a chart of oil weights. Most 5w20 cars had an * by it stating 0w20 was also approved.
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Old 04-05-2012, 07:05 PM   #7
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

bro 5w-20, 5w-30,5w-40,5w-50,5w-a bajillion all perform the same on a cold start. Do you know what those numbers on a oil bottle really mean?
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Old 04-05-2012, 07:07 PM   #8
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by T3KNiQe View Post
bro 5w-20, 5w-30,5w-40,5w-50,5w-a bajillion all perform the same on a cold start. Do you know what those numbers on a oil bottle really mean?
what do they mean bro
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Old 04-05-2012, 07:08 PM   #9
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by T3KNiQe View Post
bro 5w-20, 5w-30,5w-40,5w-50,5w-a bajillion all perform the same on a cold start. Do you know what those numbers on a oil bottle really mean?
I do, I meant to say 5 is better at cold starts than 10, but didn't type it out. Does anyone really think 5w20 is as good as 5w30 for cars like the Si that were developed to run 30 weight? What about Lance? 30 weight, 40 weight?
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Old 04-05-2012, 07:08 PM   #10
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

I would never run a thinner oil than spec'd for the engine. Get a 30 weight in there. Thats not to say a 20 weight is bad, its a very good oil for the right application.
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Old 04-05-2012, 07:11 PM   #11
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by rota92 View Post
I run 5-20 Mobil1 in GF's 07 EX for ~10k until I change it. Runs like a boss. Oil report came back minty fresh.

I think you should talk to the dealer, doesn't sound like a common thing to do if that's not what the manual and the oil cap say lol
I called every dealer in the area. All of them put in the 5w20 "bulk oil" which they claim is a synthetic blend. There are even dozens of posts on 8thcivic about people in other states that have been given 5w20 without knowing it. I'm sure it's not a huge deal, but seems a bit odd to me. They went to the 20 weight purely to satisfy CAFE standards.
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Old 04-05-2012, 07:12 PM   #12
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

My fathers TSX was using a little more oil than normal with no abnormal signs of it (leaks/smoke) He was having his oil changed at the dealership.

I decided I'd be doing the oil changes for him from now on. I use Penzoil 5w30 high mileage with an OEM filter. The car now requires NO oil to be added in the 3k oil change. Before it was 1.5quarts at about 2k.

5w20 and 5w30 flow the same when cold. Hence the 5. If the car calls for 5w30 don't put 5w20 or 0w20.
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Old 04-05-2012, 07:12 PM   #13
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by rubikscube View Post
5w20 is better for cold starts, but doesn't 5w30 beat it in nearly every other area?
You have your numbers backwards.

These 2 are identical for cold starts because they both start with the number 5.

Start here:
http://www.bobistheoilguy.com/motor-oil-101/

Read all 10 articles.
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Old 04-05-2012, 07:14 PM   #14
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

i work at a dealer, two different shops but same dealer, somethings we get jobs from other shop witch is a gm shop, we only have 5-20 in are pumps so thats what they get,even if they call for 30, do i think its right? no. do i care? no. just sayin
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Old 04-05-2012, 07:14 PM   #15
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by rubikscube View Post
They went to the 20 weight purely to satisfy CAFE standards.
I'm not sure I understand this statement. CAFE standards only apply to new cars so why would that impact what oil they put in a car at service?
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Old 04-05-2012, 07:14 PM   #16
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by rubikscube View Post
I do, I meant to say 5 is better at cold starts than 10, but didn't type it out. Does anyone really think 5w20 is as good as 5w30 for cars like the Si that were developed to run 30 weight? What about Lance? 30 weight, 40 weight?
40 weight sounds nice

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Old 04-05-2012, 07:17 PM   #17
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by njn63 View Post
I'm not sure I understand this statement. CAFE standards only apply to new cars so why would that impact what oil they put in a car at service?
Their bulk oil is now 5w20 oil. So when you bring an 06 Si in that calls for 5w30, they'll just give you 5w20 but put "bulk oil" on your receipt because it's cheaper for Honda. Even if it's not as good for your car.
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Old 04-05-2012, 07:19 PM   #18
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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what do they mean bro
The first digit before the tack is the viscosity of the oil at 74 degrees Fahrenheit. The digits after the tack are the viscosity at normal operating temperature. All cars should use a 0w- oil, which is the thinnest oil today. Their is no oil on this earth that can protect a car on a cold start below 74 degrees. A 0w will provide the quickest protection at 74 degrees, then 5w at a higher temperature, 10w and so on etc etc.

Also another thing is oil pressure doesn't equal lubrication, oil flow equals lubrication. A -20 weight oil has much better flow characteristics when compared to a -30,-40,-50,-60. Even at racing temperatures their is very little difference in oil characteristics. So people who put -40 oil in their car under the assumption that well it revs high and they race are misguided. Theirs a super long article I read about oil one day that took me 2.5 hours to read dispelling all these myths and rumors. I wouldn't even know where to start. It was extremely fascinating to say the least. Most people like myself previously weren't to sure what it all meant anyways.
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Old 04-05-2012, 07:25 PM   #19
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by rubikscube View Post
Their bulk oil is now 5w20 oil. So when you bring an 06 Si in that calls for 5w30, they'll just give you 5w20 but put "bulk oil" on your receipt because it's cheaper for Honda. Even if it's not as good for your car.
That's just cheap/lazy. For what they charge for an oil change the least they could do is stock the proper oil... it's not like Honda used a bunch of different weights.
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Old 04-05-2012, 07:29 PM   #20
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by rubikscube View Post
Their bulk oil is now 5w20 oil. So when you bring an 06 Si in that calls for 5w30, they'll just give you 5w20 but put "bulk oil" on your receipt because it's cheaper for Honda. Even if it's not as good for your car.
i think it depends on the dealership. i work at a honda dealership and if you bring in a Si we put in 5w-30 still. we have 5-20 and 0-20 on tap but we have a huge drum of 5-30 and we even have a drum of mobil synthetic 5-30.

pretty much all of honda's cars from 2012 on will be running 0-20. not sure why, but pretty much every honda since 2001- 2011 has been running the 5w-20 oil, but not the Si and S2k.
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Old 04-05-2012, 07:30 PM   #21
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by CRX-Kid11 View Post
i work at a dealer, two different shops but same dealer, somethings we get jobs from other shop witch is a gm shop, we only have 5-20 in are pumps so thats what they get,even if they call for 30, do i think its right? no. do i care? no. just sayin
People getting bamboozled. They rapin erbody out here!!
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Old 04-05-2012, 07:32 PM   #22
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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i think it depends on the dealership. i work at a honda dealership and if you bring in a Si we put in 5w-30 still. we have 5-20 and 0-20 on tap but we have a huge drum of 5-30 and we even have a drum of mobil synthetic 5-30.

pretty much all of honda's cars from 2012 on will be running 0-20. not sure why, but pretty much every honda since 2001- 2011 has been running the 5w-20 oil, but not the Si and S2k.
How much less protection does a 5w20 provide than a 5w30?
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Old 04-05-2012, 07:35 PM   #23
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

you should see what drivers put in these same hondas OUTSIDE of north america...its clear they use these thin oils to attain better gas mileage.
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Old 04-05-2012, 07:35 PM   #24
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

I would take Honda's word for it, they have too much to lose in being wrong
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Old 04-05-2012, 07:37 PM   #25
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Default Re: 5w20 engine oil is Honda's new standard. But is it right?

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Originally Posted by 4LugR View Post
i think it depends on the dealership. i work at a honda dealership and if you bring in a Si we put in 5w-30 still. we have 5-20 and 0-20 on tap but we have a huge drum of 5-30 and we even have a drum of mobil synthetic 5-30.

pretty much all of honda's cars from 2012 on will be running 0-20. not sure why, but pretty much every honda since 2001- 2011 has been running the 5w-20 oil, but not the Si and S2k.
That's because in 2001 0w- didn't exist

Quote:
Originally Posted by rubikscube View Post
How much less protection does a 5w20 provide than a 5w30?
None, the question you should be asking is much better protection does -20 provide over -30. The -20 is a better oil, has better flow characteristics which equals better lubrication, which equals better protection.
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