how long is mobile 1 5w-20 supposed to last until next oil change

LOUISSSSS

Diamond Member
Dec 5, 2005
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assuming i don't drive my car too hard, and i use Mobile 1 fully synthetic oil
how long is it supposed to last until next oil change?
 

Apex

Diamond Member
Oct 11, 1999
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Depends on the car. It's hard to make a blanket statement about oil life.

I would hazard to gues that if you don't push your car that hard, and it's not an extreme usage engine (ie. non-watercooled turbocharged), the oil itself will be good for well over 10k miles.

This is not to say that your oil filter will be good for this long, or that you won't have gas/water/coolant or anything else leaking into your oil and diluting it.
 

iamwiz82

Lifer
Jan 10, 2001
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Every situation is different. You would need get your oil tested very regularly to determine when it degrades to the point that it needs to be replaced.
 

Gillbot

Lifer
Jan 11, 2001
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Originally posted by: j00fek
i wouldn't go more than 5K miles on it

Most GOOD conventional oils can now easily go 5k so 10k with a synthetic is not uncommon. Every car is different though due to driving habits and environment. The only sure way to tell is oil testing to determine your proper interval.
 

flyfish

Senior member
Oct 23, 2000
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99% of normal driving autos will do just fine with 8k-10k mile oil changes with synthetic oil and 5k-7k with conventional oil. Why waste oil and money?
If you engine has a problem, changing the oil earlier will not help.
 

mshan

Diamond Member
Nov 16, 2004
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With a quality motor oil, I would use follow the recommendations in your owner's manual.
 

BD2003

Lifer
Oct 9, 1999
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Originally posted by: LOUISSSSS
assuming i don't drive my car too hard, and i use Mobile 1 fully synthetic oil
how long is it supposed to last until next oil change?

5w-20 is a wicked thin oil though....what car do you drive?
 

mwmorph

Diamond Member
Dec 27, 2004
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Originally posted by: BD2003
Originally posted by: LOUISSSSS
assuming i don't drive my car too hard, and i use Mobile 1 fully synthetic oil
how long is it supposed to last until next oil change?

5w-20 is a wicked thin oil though....what car do you drive?

Probably a Ford, almost all modern fords use 5W20
 

LOUISSSSS

Diamond Member
Dec 5, 2005
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2005 accord, its just the recommended... my cousin who's a mechanic says tis okay to use 5w-30 tho...
 

jagec

Lifer
Apr 30, 2004
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Originally posted by: LOUISSSSS
2005 accord, its just the recommended... my cousin who's a mechanic says tis okay to use 5w-30 tho...

It's almost always safe to use a slightly heavier oil, but it can make the car a bit harder to start and very slightly decrease your fuel economy.

If the manual calls for 5w20, I'd use it...you're just wasting fuel otherwise. But make sure that's not just the cold-weather grade.

I remember my old Golf (4cyl 8V) took 20W50. The thing was a tractor. Very disappointing performance and fuel economy, after coming from 16V DOHC Japanese engines.
 

ScottFern

Diamond Member
Oct 23, 2002
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I use Mobil1 5w20 in my 07 Camry and I change the oil every 4k miles. The oil may be able to last longer, but what about the filter? I highly doubt that.
 

randomlinh

Lifer
Oct 9, 1999
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almost all newer cars are calling for 5w20 these days I think.

but keep in mind if you're going for long extended oil change intervals... your filter may not last that long! so change it
 

LOUISSSSS

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Dec 5, 2005
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what are the top oil filters avaiable for easy purchase @ autozone, strauss, pepboys? or online if its still within the same price
 

Apex

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Oct 11, 1999
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Originally posted by: LOUISSSSS
what are the top oil filters avaiable for easy purchase @ autozone, strauss, pepboys? or online if its still within the same price

Purolator Pure One and Mobil 1 are both excellent filters. K&N makes one that has slightly better flow, slightly less filtration, but is still very good.

I guess it depends on the car. If you have a Ford, the Motorcraft filters are actually very good too, and cheap.
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
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<div class="FTQUOTE"><begin quote>Originally posted by: Apex
<div class="FTQUOTE"><begin quote>Originally posted by: LOUISSSSS
what are the top oil filters avaiable for easy purchase @ autozone, strauss, pepboys? or online if its still within the same price</end quote></div>

Purolator Pure One and Mobil 1 are both excellent filters. K&N makes one that has slightly better flow, slightly less filtration, but is still very good.

I guess it depends on the car. If you have a Ford, the Motorcraft filters are actually very good too, and cheap.</end quote></div>I just bought a Mobil 1 oil filter for my car. I had picked up the K&N first, but I took them both out of the package and they were IDENTICAL. Obviously I didn't tear them apart, but they had the same internal and external hole patterns, the same stampings on the bottom cap, the same bypass mechanism, and the filter media looked the same at least.

The M1 was 2$ cheaper, so I got that one. :p The K&N may have had a more robust outer casing, but it was hard to tell.
 

Pacfanweb

Lifer
Jan 2, 2000
13,155
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Originally posted by: LOUISSSSS
what are the top oil filters avaiable for easy purchase @ autozone, strauss, pepboys? or online if its still within the same price
OEM oil filters are typically of superior quality to all but the very top aftermarket filters.
I've seen a whole row of them taken apart, and the top 4 of about 20 (all about the same) were GM/Delco, Ford/Motorcraft, Mopar, and Fram HP.
This was a few years back, but nothing has changed, other than a few more high-quality filters available besides the Fram HP. (Mobil1, etc.)

So if you have reasonable access to a Honda dealer, just buy the factory filter. Can't go wrong with it, and you're just pissing money away to buy any filter that's really expensive.
Nobody has oil-related failures anymore, unless it's caused by not changing it.
 

PricklyPete

Lifer
Sep 17, 2002
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I'm sure it could go 10K+ w/o any issues...but I use Mobil 1 and still change it every 5K miles. Why? Because it's cheap, easy, and I want my truck to last 15+ years, and changing oil regularly is one of the best ways to do that.
 

amdskip

Lifer
Jan 6, 2001
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I'm going at least 15k+ miles on my current oil change. Running synthetic for 5k miles is pointless.
 

Wolfie

Platinum Member
Oct 9, 1999
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Originally posted by: amdskip
I'm going at least 15k+ miles on my current oil change. Running synthetic for 5k miles is pointless.

And how long do you think your oil filter will last? Even with synthetic, the oil still collects dirt and debris. :)
 

PricklyPete

Lifer
Sep 17, 2002
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<div class="FTQUOTE"><begin quote>Originally posted by: amdskip
I'm going at least 15k+ miles on my current oil change. Running synthetic for 5k miles is pointless.</end quote></div>

That's a rediculous statement to make. Sure, under most driving conditions and Mobil 1, todays engine can go 15K miles between changes, but that doesn't mean you should. To say there there are no other factors (road conditions, filter, time of year,etc) that affect the quality of the oil is ignorant. Changing every 5k, no matter how good the oil is, is beneficial to the life of your engine.
 

amdskip

Lifer
Jan 6, 2001
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No it's not a rediculous statement. Read this directly from Amsoil:

SERVICE LIFE
AMSOIL Synthetic 5W-30 Motor Oil is recommended for extended drain intervals in unmodified(1), mechanically sound(2) gasoline fueled vehicles as follows:

? Normal Service(3) ? Up to 25,000 miles or one year, whichever comes first.

? Severe Service(4) ? Up to 15,000 miles or one year, whichever comes first.

? Replace AMSOIL Ea oil filter at the time of oil change up to 25,000 miles or one year, whichever comes first (other brands at standard OEM* intervals).