Synthetic oil MPG boost since change

[Yaris Dick]

Just checked MPG on my first tankfull since my first oil change and switch to Amsoil 5W30.

Went from 40.4 to 42.4 MPG hwy. 5% increase. Not too shabby.

[foober]

I just ordered a 12 pack of 5W/30 amsoil oil and 3 amsoil oil filters. The oil filter part number is #EaO09.

Thanks to all that turned me on to amsoil. Everything i've read is its the best right now in synthetic oil.

[nsmitchell]

You just can't go wrong with Synthetic Oil! I can't wait to change over on my first oil change! 5% is pretty remarkable, just by switching oil. I will be using Series 2000 0W-30. Any reason y'all went with 5W-30? Just curious...

[foober]

You just can't go wrong with Synthetic Oil! I can't wait to change over on my first oil change! 5% is pretty remarkable, just by switching oil. I will be using Series 2000 0W-30. Any reason y'all went with 5W-30? Just curious...

From what I've read the 0w-30 is a bit better in colder temperatures. Since I live in montana I'll use that in the winter. But I'll use 5w-30 otherwise. Considering i'll also be using the amsoil oil filter i shouldn't have to change my oil but once a year. I probably only drive around 10,000 miles a year with my yaris. So i'll probably only use the 0w-30. Guess I'll use the 12 pack of 5w-30 Amsoil oil I also got in my trucks.

[07WYarisRS]

You just can't go wrong with Synthetic Oil! I can't wait to change over on my first oil change! 5% is pretty remarkable, just by switching oil. I will be using Series 2000 0W-30. Any reason y'all went with 5W-30? Just curious...

Overall the 0w-30 is the better oil and lasts longer between oil changed due to higher level of Base stocks.
The 5w-30 is still an awesome full synthetic but cheaper in price
I run the 0w-30 and change the wix filters every 6 months.
I get over 40mpg
That's with an automatic

Manual owners should run Amsoil 75w-90 severe gear oil in the transmissions. Automatic owners should run Amsoil ATF
do this and you will see another increase in mileage.

With my truck after my complete tune up I went up to about 22 MPG hwy and 18 in town
changed the engine oil to Amsoil 0W-30
changed the ATF to Amsoil ATF
Changed the rear differential fluid with Amsoil 75W-90
My mileage went up to 27mph hwy. 24 mixed, 22 in town

[GoZO]

Just checked MPG on my first tankfull since my first oil change and switch to Amsoil 5W30.

Went from 40.4 to 42.4 MPG hwy. 5% increase. Not too shabby.


How often to you plan on changing oil/filter?

[YamilR]

Is this the oil that you got? https://www.amsoil.com/storefront/xlf.aspx

[Yaris Dick]

Is this the oil that you got? https://www.amsoil.com/storefront/xlf.aspx

No. I got the ASL 100% Synthetic 5W30

[Yaris Dick]

How often to you plan on changing oil/filter?

10,000 miles.

[Yaris Dick]

You just can't go wrong with Synthetic Oil! I can't wait to change over on my first oil change! 5% is pretty remarkable, just by switching oil. I will be using Series 2000 0W-30. Any reason y'all went with 5W-30? Just curious... I went with 5W30 because it's cheaper and I live in the south and I've had prior good results from it, tried the 0W30 once and saw no tangible (measurable) improvement over the 5W30.

[YamilR]

No. I got the ASL 100% Synthetic 5W30

How about a link if you don't mind

[Yaris Dick]

http://www.amsoil.com/storefront/asl.aspx

[grampi]

Just checked MPG on my first tankfull since my first oil change and switch to Amsoil 5W30.

Went from 40.4 to 42.4 MPG hwy. 5% increase. Not too shabby.

How much oil does the Yari take when you do a filter/oil change? Thanks.

[CASTREX]

How much oil does the Yari take when you do a filter/oil change? Thanks.

4 Qtrs

[grampi]

4 Qtrs

I'm glad to see Toyota's increased the sump size of the 1.5 liter since the Tercel days. My Daughter's Tercel only holds 3 qts.

[blacksan]

I too have nothing but respect for Amsoil. My family used it in heavy equipment for years and it performed in a stellar fashion. The procedure was to swap filters, top off and send samples out for analysis. We only changed oil once each year. Unlike cars the intervals where determined by hours ran and not miles. With top notch filters (Amsoil, Wix, Hastings) the average Yari Pilot with an annual 15K useage would only need to change there oil once a year. with a filter swap around 7.5K.

[PetersRedYaris]

Hypermilers change their oil often because fresh oil always nets better MPG's, regular or synthetic.

[CASTREX]

BTW I just received a 12pk of Amsoil 0W-30 on my mail today! :thumbup:

Also got thhe 75w-90 gear oil for the tranny.

Can some one tell me how hard is to change the tranny oil??? Should I go to a shop or is something I can do by my self???

[BailOut]

Hypermilers change their oil often because fresh oil always nets better MPG's, regular or synthetic.
Actually, I'm set up for annual changes with 5W-20 Mobil1 Extended Performance synthetic along with a K&N Gold oil filter. There have been a lot of tests done and they show very little viscosity change in this oil at 15,000 miles.

I also use a magnetic drain plug just in case.

[blacksan]

BTW I just received a 12pk of Amsoil 0W-30 on my mail today! :thumbup:

Also got thhe 75w-90 gear oil for the tranny.

Can some one tell me how hard is to change the tranny oil??? Should I go to a shop or is something I can do by my self???


I am going to change my tranny too. I have not crawled up underneath mine yet, but a simple fill and drain plug arrangement is all there is. Take a peak at the shop manual and you can see the fill level procedure which is pretty much status quo for any manual tranny I ever owned. I would stop by the parts counter and get a drain plug gasket before doing the job. as a matter of fact I am in contact with a manufacture that is providing me with a magnetic drain plug for the motor and I might just pick up a magnetic drain plug for the tranny.

[KittenRD]

I use synthetic oil too, but my mpgs aren't nearly that. How do you get such good gas milage?

[blacksan]

I use synthetic oil too, but my mpgs aren't nearly that. How do you get such good gas milage?

I just recently traveled to the east coast of my state (which is flat) and got an average of 47+ MPG. I kept my speeds at approximately 65 MPH with the AC on.

[swng]

I just recently traveled to the east coast of my state (which is flat) and got an average of 47+ MPG. I kept my speeds at approximately 65 MPH with the AC on.
That is a really good result, if you are not a hypermiler, I mean, if you just drive like an ordinary driver or an F.E. conscious driver at most. I guess you may be a not-so-serious hypermiler. Anyway getting 47 miles per US gallon without losing the comfort of the AC is no small deal. I think just the use of synthetic oil cannot have given you such a good result. I have to assume that you have not driven much in busy city traffic. I am very interested in knowing more about how to get good fuel economy without sacrificing comfort, convenience and safety and I sincerely invite you to share your skills and experience at the Fuel Economy thread.

[blacksan]

That is a really good result, if you are not a hypermiler, I mean, if you just drive like an ordinary driver or an F.E. conscious driver at most. I guess you may be a not-so-serious hypermiler. Anyway getting 47 miles per US gallon without losing the comfort of the AC is no small deal. I am sure just the use of synthetic oil cannot have given you such a good result. I have to assume that you have not driven much in busy city traffic. I am very interested in knowing more about how to get good fuel economy without sacrificing comfort, convenience and safety and I sincerely invite you to share your skills and experience at the Fuel Economy thread.

I use synthetic in both engine and tranny. I short shift at low RPM and keep a real steady throttle at speed. When I changed the tranny fluid to synthetic I noticed how much smoother the synthetic was as I lost a discernible degree of engine breaking with the tranny. On my previous car (Subaru) I still had 75% brake pad material after 80K which is a result of my interstate commute and engine breaking with tranny. Does this help?

BTW, I change my filter at 5K and top off with a full fluid change at 20K with Amsoil synthetic in both motor and tranny.

[swng]

I use synthetic in both engine and tranny. I short shift at low RPM and keep a real steady throttle at speed. When I changed the tranny fluid to synthetic I noticed how much smoother the synthetic was as I lost a discernible degree of engine breaking with the tranny. On my previous car (Subaru) I still had 75% brake pad material after 80K which is a result of my interstate commute and engine breaking with tranny. Does this help?

BTW, I change my filter at 5K and top off with a full fluid change at 20K with Amsoil synthetic in both motor and tranny.

Very sensible! The dealership has been offering to change my engine oil to synthetic oil for double the price of the regular mineral oil (about C$35 with regular and C$70 with synthetic oil in a basic routine service, plus tax, if I remember correctly). As I have all along been using the Yaris basically as a light duty workhorse car, not a heavy duty/sports car, I have chosen to stay with regular i.e. mineral oil. Since I need to change the oil about every six months, I think considering my rate of fuel consumption, even with the noticeable better fuel economy to be expected, there is little chance that the synthetic oil can pay for itself. Now that you say that synthetic oil improves smoothness (I admit I am slighty surprised), which I presume will render the driving more pleasurable, may be I should give synthetic oil a try.
Remember, the Fuel Economy thread always welcomes sucessful fuel savers like you to share their reasons for their fine achievements.

[blacksan]

Very sensible! The dealership has been offering to change my engine oil to synthetic oil for double the price of the regular mineral oil (about C$35 for regular and C$70 for synthetic, plus tax, if I remember correctly). As I have all along been using the Yaris basically as a light duty work horse car, not a heavy duty/sports car, I have chosen to stay with regular i.e. mineral oil. Since I need to change the oil about every six months, I think considering my rate of fuel consumption, even with the resulting better fuel economy, there is little chance that the synthetic oil can pay for itself. Now that you say that synthetic oil improves smoothness (I admit I am slighty surprised), which I presume will render the driving more pleasurable, may be I should give synthetic oil a try.
Remember, the Fuel Economy thread always welcomes sucessful fuel savers like you to share the reasons for their fine achievements.

I am from a very rural background (farming & trucking). Long before I was old enough to drive I was wrenching heavy equipment and analyzing wear. We (my family & I) sent off oil samples for wear when equipment started to cost 100K +. Synthetic with good filters (Wix my favorite) kept coast down and equipment running longer. The other variable I found to be significant is tire inflation. I check mine weekly and keep it at 34 PSI (cold) which seems to work well in my situation. I also rotate front to back at 5K.

[swng]

Thanks for the insight again. My tires are at 34 PSI (cold and all around) too. A balance between comfort and efficiency, hopefully without losing the important emergency braking ability in daily road conditions too. They are rotated at every other regular service. Hmmm, may be synthetic oil next time I take the car to service.
BTW, nice avatar blacksan, and of course KittenRD too!

[blacksan]

Thanks for the insight again. My tires are at 34 PSI too. A balance between comfort and efficiency, hopefully without losing emergency braking ability in daily road conditions. They are rotated at every other regular service. Hmmm, may be synthetic oil next time I take the car to service.
BTW, nice avatar blacksan, and of course KittenRD too!

I am always willing to add my simple experience to my brothers in the north.:biggrin: If you ever head south for holiday please give me a shout, K.

[swng]

:thanks:

[alhope34]

I use 5W-30 Mobil1 synthetic with the normal Toyota oil filters. I never bothered to see if there was a mpg difference when I changed from normal to synthetic, it was around 3000kms on the car. I was just interested in the added engine life that comes along with using a full synthetic constantly since after break-in. I try to change the oil between 6-8000kms, and the oil is usually not too dirty. Not amber but not complete black like the cars we'd get in at the dealership.

Personally, I'd be kind of iffy using a 0w-30 oil. At the Toyota dealership when I worked there they were dead set on 5W-30 for all their cars. Didn't matter if it was synthetic or normal, even if customers bought their oil somewhere else, we would only use 5W-30 unless the customer absolutely insisted on other type. Would that have something to do with the oil pump pressure? Could the lighter oil mess it up somehow? I know using a thicker oil isn't good as it restricts oil flow, especially during warm up.