Oils type for O-360A1D

[isaacpr7]

My 68C has a O-360A1D and I will be changing the oil soon. It currently has Aeroshell W 100 but I would like to use W 100 plus for the next oil change. I ordered the oil from Aircraftspruce.com but ordered W 80 plus by mistake. Can anyone enlighten me on whether I could use the W 80 plus or not? Returning it would set me back for shipping and handling but I rather use the right type.

[Rwsavory]

I think W80 will be fine. Especially since we're going into cooler weather.

[isaacpr7]

Has anyone using W 80 out there noticed any increase in operating temperatures?

[Bob - S50]

We routinely use w100 from about April to October and w80 during the winter.  Exact timing depends on when the oil needs to be changed.  We've already changed over to w80 with Camguard for the winter (Seattle area).

 

Shell recommends the use of w80 and w80 plus at temperatures from -17C to 21C (1F to 70F).

They recommend w100 and w100 plus from 16C to 32C (61F to 90F)

And w120/w120 plus above 26C (79F).

 

Bob
 

[isaacpr7]

Awesome! Thank you guys for all the knowledge that you bring to the table. In that case I will cancel the W 100 order and keep the W80 during the winter.

[Jeev]

Having the Mooney based in FL and Vegas I find that w100+ in the Summer and 15/50 in the winter work well. I have been doing this for about 1000 hrs with good results.

[rbridges]

We routinely use w100 from about April to October and w80 during the winter.  Exact timing depends on when the oil needs to be changed.  We've already changed over to w80 with Camguard for the winter (Seattle area).

 

Shell recommends the use of w80 and w80 plus at temperatures from -17C to 21C (1F to 70F).

They recommend w100 and w100 plus from 16C to 32C (61F to 90F)

And w120/w120 plus above 26C (79F).

 

Bob

 

 

 

first time I've seen that.  I use w100 with camguard.  I didn't realize it had such a narrow recommended window of temps.

[Bob - S50]

first time I've seen that.  I use w100 with camguard.  I didn't realize it had such a narrow recommended window of temps.

I wouldn't worry about it if you get a bit outside those temperatures.  We get a few days in the 90's in the summer and most days it is below 60 in the morning.  Come fall, the normal high's are in the 60's and 70's with lows in the 40's and 50's.  On my next trip we'll go through Bend (BDN) where it was 34F in the morning last week.  We'll end up at SQL where it will most likely be in the 70's.  I'm still fine with using w80.

 

Bob

[bonal]

In the summer we get lots of plus 100 days and in the winter lots of days in the teens but I stick with 100w and just do a longer warm up on the cold days. I know this May sound silly but I am one of those that believes motors don't like it when you change oil types.

With Cam Guard.

[isaacpr7]

Bonal,

Why do you say that engines don't like oil type changes with Cam Guard?

[carusoam]

I think Bonal had two sentences. With a slightly different meaning?

Best regards,

-a-

[bonal]

You are correct Carusoam, I added the cam guard comment as an afterthought. It seems that engines start having reliability issues when for instance a new owner uses a different brand or weight of oil. I'm sure it's just one of those old wives tales but then I'm sure you guys have figured out I'm kind of goofy like that. I try to keep things consistent when it comes to maintenance. I get good results with the 100w and that's what the previous owner used.

[Jim Peace]

When I bought my plane the prior owner was using aeroshell 15w-50. Semi synthetic. He has been using this for ever in Los angeles.

I am flying from LA to Florida to NJ next week. I have a quart or two of the old oil left. Should I just add 100 weight to replace the burn off and never look back at the 15w-50.

Recommendations?

64 M20C 180hp carburetor.

[Hank]

I've been using Aeroshell 15W-50 since buying my C in 2007, mostly because that's what the previous owner used. I'm now pushing 700 SMOH with no issues. Until this time last year, the plane was in WV/OH.

[Marauder]

When I bought my plane the prior owner was using aeroshell 15w-50. Semi synthetic. He has been using this for ever in Los angeles.

I am flying from LA to Florida to NJ next week. I have a quart or two of the old oil left. Should I just add 100 weight to replace the burn off and never look back at the 15w-50.

Recommendations?

64 M20C 180hp carburetor.

Jim -- I have been using Aeroshell 15W-50 through two TBOs. I think as long as you do routine oil changes you will be fine. I don't subscribe to the evil oil theories. I change at 30 hours including the filter.

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[M20F]

I found this video from Mike Busch to be very informative, I use Phillips X/C plus Camguard.

http://www.eaavideo.org/video.aspx?v=1149666747001

[Jim Peace]

I found this video from Mike Busch to be very informative, I use Phillips X/C plus Camguard.

http://www.eaavideo.org/video.aspx?v=1149666747001

Great info......

[stevesm20b]

I use Aeroshell 15w-50 and change my oil and filter every 25 hours. I don't think it matters as much what kind of aircraft oil you use, as much as, flying the airplane often and change the oil often, as long as it's an oil approved by the engine manufacture.

[bonal]

My understanding from things I have read over the years is its not good to mix a multi viscosity oil and a fixed weight oil. The molecular structures don't mix well if the 15 50 has been working well I would continue to add that until it's time for change then decide what to use in the future

[Rhumbline]

I use Aeroshell 15w-50 and change my oil and filter every 25 hours.

Ditto on oil and intervals.  My motor is original with something under 1500hrs since new.  The previous owner (an IA) was steadfast in the use of Aeroshell 15w50 though he advocated as sufficient an oil & filter change every 50 hours or six months.  Since the engine is nearing the aforementioned total time and its 47th birthday without an overhaul I choose to change the oil every 25hrs to detect any trouble as early as is practical.  It uses around 1 1/2 quarts between changes, compressions are in the mid to upper 70's, performance is good and my current mechanic still comments on the ostensibly unusual fact that the oil analysis comes back absolutely flawless each time. 

 

I'm certainly in no position to make any recommendations and the logs clearly indicate that other oils have been used in years past but the current plan seems to be a good recipe.            

[Jim Peace]

My understanding from things I have read over the years is its not good to mix a multi viscosity oil and a fixed weight oil. The molecular structures don't mix well if the 15 50 has been working well I would continue to add that until it's time for change then decide what to use in the future

I agree.  And after watching the EAA videos I may switch to w100 with cam guard.....