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Castrol 5w-40 on sale
- Thread starter gsinnc
- Start date
gsinnc
Well-known member
Not the one I am seeing. Looks like this !! This is not a subscribe and save coupon but a one time discount.
lirider
Member
I had to clear my Amazon cookies to see the 20% off coupon without having to "subscribe & save". I'll admit that I've purchased the same thing from Amazon using the straight 20% off coupon several times in the past so perhaps that has something to do with it (tailored response).
*Update: as soon as I log into my Amazon account it switches back to a subscribe & save 20% discount. I suppose it really doesn't matter because you can cancel the subscription right after you place the order if you like (or anytime before it's refilled automatically).
*Update: as soon as I log into my Amazon account it switches back to a subscribe & save 20% discount. I suppose it really doesn't matter because you can cancel the subscription right after you place the order if you like (or anytime before it's refilled automatically).
gsinnc
Well-known member
Odd for sure as mine defaults to the 20% off one time purchase coupon. But it does tell me I’ve purchased a dozen times in the past. Mine automatically logs me in.
lee
Debbie's Servant
I have you beat. Mines shows 22 times
A few times when it was really cheap I ordered a couple 6 packs at a time.
gsinnc
Well-known member
I have you beat. Mines shows 22 times
A few times when it was really cheap I ordered a couple 6 packs at a time.
Right now I have about 28 quarts on hand but will probably use 8 or 12 qts by August.
I’m good to get thru 2021 and beyond. Good news is while both my bikes are 1200’s the 1250 uses same oil. So even if I upgrade I’m good
ncpbmw1953
Member
I never bought the idea oil could have any significant affect on shifting quality based on the fact the forces involved are just too great to have a lubricant come into play. I bought 6 quarts of the Castrol for my '16 RT and have to say shift quality deteriorated. This became confirmed when I changed to LiquiMoly all PAO base oil and I'm convinced it definitely improved shifting quality. Maybe his has more to do w/ the wet clutch than anything else. As a result I plan to stick w/ LiquiMoly:
gsinnc
Well-known member
What works best for you is what matters but PLEASE let’s not make this an “oil thread”.
Intent was simply to share a good deal for those using Castrol.
ncpbmw1953
Member
gsinnc
Well-known member
LMAO .... I’ll take my chances but thank you for looking out for me.Now Ed you do know that Castrol will void your extended warranty?
For years Castrol was listed in the owners manual .... there may even have been a 20% off coupon included.
ncpbmw1953
Member
LMAO .... I’ll take my chances but thank you for looking out for me.
For years Castrol was listed in the owners manual .... there may even have been a 20% off coupon included.
I know I think it was the recommended oil prior to 'Advantec Ultimate' which I used until the OEM warranty expired then went to LiquiMoly at LAF's recommendation, then to Castrol, now back to LiquiMoly.
Nice to see BMW is coming out w/ their own extended factory warranty which is exactly what I opined for some time back. Perhaps they're reading the forums after all! If true, maybe I will hear about the really old people's RT I will want some day: all the same power, features, tech, etc in a 100lb lighter package, complete w/ electric screen....ALL the features, save the boxer as I don't think you could get the same P:W with a smaller boxer but I'm not sure.
adamchandler
YouTube Mechanic
I don't care what oil you use but this sale comes about seemingly every time I need an oil change. It's a great deal and I don't think I've ever had to pay full price for their oil.
Thanks
Been looking for an oil that meets BMW "requirements", and was having trouble finding any. It wasn't on sale, but still cheaper than stuff in stores.
Been looking for an oil that meets BMW "requirements", and was having trouble finding any. It wasn't on sale, but still cheaper than stuff in stores.
gregfeeler
Dances With Sheep
The oil on sale is a 4T blend, meaning it is designed for bikes with common lubrication between the engine and transmission, and a wet clutch. It is not a good choice for any dry clutch BMW. As for the SAE weight specification go with what the manufacturer recommends.
pauls1150
MOA #24991, south of Los Angeles
Note that Castrol makes a few different "4T" oils, not just different weights but also petro, blended, and full synthetic versions.
In Kurt's comparison several years ago (and things may well have changed since), their 20-50 varieties came out as "middle of the pack" and was SG rated, inferring that it was OK for airheads and oilheads.
In Kurt's comparison several years ago (and things may well have changed since), their 20-50 varieties came out as "middle of the pack" and was SG rated, inferring that it was OK for airheads and oilheads.
gregfeeler
Dances With Sheep
Actually, Kurt's article was published in the March 2013 ON and he tested a 20-50 Castrol 4T petroleum (not synthetic) oil. Although Castrol said it was and SG/SH oil, it has only 758ppm of Phosphorus and 924ppm of Zinc - well below the often quoted minimum of 1,000ppm of Zinc and Phosphorus, with 1,500ppm of each considered "ideal". That last reference was from an earlier article in the ON about oils authored by Matt Parkhouse and referenced by Kurt. Currently, Mobil1 15W-50 automotive oil has 1,200 ppm of Phosphorus and 1,300ppm of Zinc, so is good for any flat tappet BMW dry-clutch engine. Their "V-Twin" 20W-50 has 1,600 and 1,750ppm of Phosphorus and Zinc respectively. Certainly a good oil but likely no significant advantage over the automotive blend for the much higher cost per quart. However, many newer generation BMW engines specify lower viscosity oils, and some "4T" motorcycle specific oils. Follow those requirements is my recommendation.
I have spent a lot of time researching lubricants and in my opinion when it comes to what is the "right" engine oil for older BMW flat tappet dry-clutch engines you must research the product information sheets of a motor oil to know if it has high enough levels of Zinc and Phosphorus. You can *not* go by what you used 20 years ago. Oil specifications have changed greatly in the direction of modern automotive engines with catalytic converters.
pauls1150
MOA #24991, south of Los Angeles
Agreed on all counts, except for the first statement... he shows a petro, a blended, and a synth.
View attachment Doc1.doc
View attachment Doc1.doc
gregfeeler
Dances With Sheep
Good catch! All the Castrol 4T oils were below acceptable ZDDP levels because of the 4T requirements:
