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Oil Viscosity for Acccent

13K views 20 replies 15 participants last post by  sleepingaccent13  
#1 ·
Just curious, I am not getting as good milage as others are and am trying to determine what the problem is, I got my oil changed at my dealership and they used 5W20. Usually for all the cars I owned I had used 5W30, what kind of oil are most using here?
 
G
#2 · (Edited)
whats it say on your cap?
It's not gong to make a noticeable difference anyways..
All depends on how and where you drive her I had a '13 for the day and averaged 6.5 p100 in city with ac on.
No finger pointing , but I've seen the speeds on the 401 and how people drive in the main city stop light drag lights,140kmh on the 401 etc ...
They're usually the first to complain.
 
#5 ·
I ran QS 5w30 ultimate durability (full synthetic) from the the 5,000-10,000 mile marks on the odometer and got some the best mileage to date (45mpg). Of coarse that was during a road trip, but it still got there on 5w30.
 
#11 ·
Not much difference between 5w20 and 5w30.

The only time I knew the oil was causing my engine to feel like it was running rough (but not detrimental) was when I used Kendall Conventional 5w30 oil.

I've used Kendall titanium synthetic 5w30 and it ran very smooth all the way through the OCI cycle.

Been using QSUD and PYB without problems both 5w20.

However, recently I had about 300 pounds of stuff in my trunk at about 2k miles on QSUD and drove my car about 200 miles with it. Now the car feels like I've been running conventional oil. 3k miles is just around the corner though, so not too worried.
 
#12 ·
If you change your own oil, then do what you want, but the cap is 5w-20, and that is what the dealer and every jiffy-lube, etc will put in it unless specified. I just have one thought here, Very smart and high paid individuals design these cars and come up with the recommendations for the oil based on averages. So what factors should be considered in changing? Climate, commute type? Will this void warranty? Sorry, I guess more than one thought. LOL
 
#13 ·
Very smart and high paid individuals design these cars and come up with the recommendations for the oil based on averages. So what factors should be considered in changing? Climate, commute type? Will this void warranty? Sorry, I guess more than one thought. LOL
Yes and they have "Cafe" requirements, government emission regulations, fleet emission regulations, and all wear tests are done in labs under controlled ideal conditions. Not to mention a high pressure fuel pump driven by a non-roller cam lifter....lots of shear there, especially with light oils in high temperatures

My manual states very clearly "5w20 is used for maximum fuel economy" 5w30 can be used for the same temperature sweep as 5w20. Therefor if we read between the lines 5w20 is only for fuel economy, and 5w30 is also acceptable.

If I was only driving it for 4 years or 100,000kms, id run the cheapest 5w20 dino oil that meets minimum specs and 6,000km OCI (Max allowed) and be done with it. However I plan on running the vehicle into the ground so I personally run 5w30 Mobil 1, at 5,000km intervals.

An extra few oil changes in the life of the vehicle is cheap insurance, and will give me peace of mind.

Just my 2 cents
Duro
 
#14 · (Edited)
Oil viscosity has nothing to do with warm up times. A lighter weight oil will however get to vital engine parts and circulate thru your engine quicker on cold start ups than a heavier weight oil, esp in cold weather. In theory a 0w-20 will give you the best MPG, and a 5w-30 will give you more protection against wear. However your best bet is to use what the manufacturer recommends. If the manufacturer says you can use a range between 0w-20 and 10w-30 in a specific temperature range then follow the recommendations. Keep in mind you can probably get away with a 0w-20 in very cold weather and a 10w-30 in super hot weather. I personally choose mobile 1 full syn 5w-20 for year round driving.

BTW there are many people on many forums that can go on about this subject for ever....arguing about ever little minute detail of oil. It will make your head spin. Try not to get too caught up in it. Keep the facts in mind and use what the manufacturer recommends for the climate where you live.
 
#15 ·
Oil viscosity has nothing to do with warm up times. A lighter weight oil will however get to vital engine parts and circulate thru your engine quicker on cold start ups than a heavier weight oil, esp in cold weather.
Keep the facts in mind and use what the manufacturer recommends for the climate where you live.
What MPG23 said is mostly correct. The lighter weight oil will lubricate better every time engine is started until oil operating temperature is reached. It will also flow more oil at operating temperature removing more heat from lubricated surfaces, than will heavier oil.
For these reasons I agree with MPG23 says, use what manufacture recommends for your climate.
 
#18 ·
on our indian version the manual recommends 5w20 for max fuel economy and 5w30 for a balance between protection and fuel economy. But! our service dealers only fill 15w40 and the car as well came of the factory with 15w40 api-sl oil! The reason they say is to keep service costs low. No wonder most of the gasoline guys get an average of 11-12l/100km i changed to 0w40 mobil1 extended performance and started getting 7-8l/100km will try 5w30 on the next oil change.
 
#20 ·
This one is for all you oil specific freaks out there.....lol Take a look at the oil I have been using in our 2012 since we purchased it brand new with 10 miles on her! For the 1st 3k miles I did use regular conventional oil. After 3k mile I have used VW Diesel oil! the car now has 140k on her & going strong! lol

When I go to the VW dealers service dept its hilarious, almost every time the guy behind the counter informs me this oil is only for the VW diesel engine! after the first time trying to discuses the issue....lol I gave up, from then on I just say "ya I know"

keep rockin in the free world!
John
 

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