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Old 09-07-2018, 08:21 PM   #1
ummwhat
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Default 2018 WRX first oil change

I got my first oil change at 5k miles, at a random jiffy lube with whatever they give you for "full synthetic". I don't know if it's just my imagination, but it feels like the car drives completely differently now, and I'm curious if anyone else has noticed the same.

From the factory, I'd get the typical big spikes of power and dead spot around 4-5k rpm. After the oil change, I don't feel the huge kicks of torque but I also don't really notice the dead spots anymore either. So I'm not really sure if I'm getting lower peaks, higher valleys, or some combination of the two, or if it's all in my head
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Old 09-07-2018, 10:37 PM   #2
Jersey Man10
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Your first mistake was going to Jiffy Lube.
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Old 09-16-2018, 11:01 AM   #3
Rapsicurio
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It's Possible that they used a synthetic blend, they did the last time my friend went to a jiffy lube anyway, that could make it feel more sluggish. That, or they screwed up and gave you the wrong oil, does it say on your receipt?
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Old 09-16-2018, 01:49 PM   #4
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Its all in your head. I highly doubt the butt dyno can tell a difference in oil types.
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Old 09-16-2018, 07:50 PM   #5
jasonwrx86
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Quote:
Originally Posted by Jersey Man10 View Post
Your first mistake was going to Jiffy Lube.
After all these issues with Jeffy Lube people still go there?
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Old 09-17-2018, 09:06 AM   #6
bluesubie
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Default 2018 WRX first oil change

Full Synthetic, Part Synthetic, Faux Synthetic, True Synthetic, 100% Synthetic, etc are all just marketing terms.

And please, never ever go to Iffy Lube.

Last edited by bluesubie; 09-17-2018 at 09:11 AM.
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Old 10-14-2018, 01:40 AM   #7
Professor WRX
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So after you got your oil changed you lost power or gained power? Prolly not related to the oil itself. Are you thinking they messed something up and it’s slower maybe losing boost? Or the oil magically made your car run better. The ecu can cut power based on environmental factors. Did the smoothness occur right when ambient air temps dropped?

FWIW jiffy lube is about like going to Walmart to get your oil change. Didn’t you get your first four oil changes free from the dealer?
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Old 10-14-2018, 03:40 PM   #8
Elbert Bass
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Maybe they drained your transmission and now you got 9 quarts oil in your crankcase?
Wouldn't be the first time I found that with an "I lost power after a quick lube place changed my oil" complaint...
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Old 10-14-2018, 07:33 PM   #9
Schikane
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I went to a Jiffy Lube a long time ago with my last car back when I lived in an apartment. I was in a hurry before work and thought I’d be able to squeeze in an oil change but I was wrong.

It was a GM so the oil filter was an insert and 3 guys tried but could not remove the cap. After 20 minutes and arguing with head “teenager” they allowed me to remove the cap for them.

That was the first and last time I ever went to a quick oil change place.
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Old 10-15-2018, 05:27 PM   #10
rtv900
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Quote:
Originally Posted by bluesubie View Post
Full Synthetic, Part Synthetic, Faux Synthetic, True Synthetic, 100% Synthetic, etc are all just marketing terms.

And please, never ever go to Iffy Lube.
although I agree there is tons of marketing nonsense around oils, Full synthetic is not a marketing term.
It means it's all synthetic oil as apposed to synthetic blend which is mixed with regular oil.

That matters in a car with an oil line feeding a blazing hot turbo.
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Old 10-16-2018, 09:11 AM   #11
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Quote:
Originally Posted by rtv900 View Post
It means it's all synthetic oil as apposed to synthetic blend which is mixed with regular oil.

The label “Full Synthetic” or “100% Synthetic” (generally meaning a Group IV or Group V base stock) does not mean that the oil uses no Group II base stocks. Even oils marketed as “conventional” or “mineral” may use synthetic base stocks even if they are not labeled as a synthetic blend. In that regard, synthetic is a marketing term.
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Old 10-19-2018, 11:00 PM   #12
Professor WRX
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Do you guys remember the castrol syntactic 5w50 that was green? Then you really knew you were getting something special.
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Old 10-20-2018, 11:30 AM   #13
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Quote:
Originally Posted by Professor WRX View Post
Do you guys remember the castrol syntactic 5w50 that was green? Then you really knew you were getting something special.


I did several intervals on the original green GC that was also something special.
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Old 10-20-2018, 01:46 PM   #14
TifosiWA
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1) Do you know what oil they put in your engine, as in what weight? If it is 5W-30 as per manufacture's specification, regardless type of oil used, then it is all in your head.

2) If the answer to the first question is no, then I must ask you, why do you not know?

3) As I understand it, the first oil service is covered by Subaru on any new vehicle, why in the world would you go to Jiffy Lube instead of Subaru?

Not being harsh on you, but if you don't know and don't care what weight oil they used and by your choice of place of service, I would say that it is all in your head because you obviously don't know or care about your car. Therefore, I highly doubt it that you can actually tell if there is a change in your engine behavior unless it is something more catastrophic. And as a FYI, if you have to go to Jiffy Lube for whatever reason, you should at least bring your own oil and filter to them. Yes, type of filter can make a difference and can cause problems as well.
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Old 10-24-2018, 08:27 AM   #15
rtv900
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Quote:
Originally Posted by bluesubie View Post
The label “Full Synthetic” or “100% Synthetic” (generally meaning a Group IV or Group V base stock) does not mean that the oil uses no Group II base stocks. Even oils marketed as “conventional” or “mineral” may use synthetic base stocks even if they are not labeled as a synthetic blend. In that regard, synthetic is a marketing term.
well what is a group II base stock? You didn't even say.

So you are saying that buying 100% synthetic does NOT mean you are getting 100% synthetic?
Does it mean 90% or 2%???

For one I wouldn't call that 'marketing', I'd call it outright lying if that is true
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Old 10-24-2018, 09:22 AM   #16
bluesubie
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Default 2018 WRX first oil change

Quote:
Originally Posted by rtv900 View Post
well what is a group II base stock? You didn't even say.



So you are saying that buying 100% synthetic does NOT mean you are getting 100% synthetic?

Does it mean 90% or 2%???



For one I wouldn't call that 'marketing', I'd call it outright lying if that is true


It’s not really outright lying, it’s marketing. Group II is the base stock for modern conventional oils. In parts of Europe, a Group III oil cannot be labeled as “Synthetic” while it can in the U.S. In Europe it would be labeled as “Synthetic Technology”. If an oil is Group III and sold as Full Synthetic some do not really consider it Full Synthetic.

Straight group “anything” is rare these days anyway. Each base stock group has limitations so a lot of oils labeled as “synthetic” aren’t always 100% synthetic because of base stock blending and conventional additives. You can always ask the oil manufacturer and see what they say. Sometimes you’ll get straight answers and sometimes they’ll just tell you it’s proprietary.

Read this article about Mineral and Synthetic base oils.

https://www.bobistheoilguy.com

And a discussion:

https://www.bobistheoilguy.com/forum...and-discussion
(especially the discussion between MolaKule and Solarent).

Last edited by bluesubie; 10-24-2018 at 11:34 AM.
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