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Mixing Amsoil SS #4441732
06/26/17 07:50 AM
06/26/17 07:50 AM
Joined: May 2017
Posts: 960
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 960
TX
Due to extremely hot South Texas summers and 1.5T Honda Civic engine being hard on the oil (including fuel dilution) planning on putting in some 0w30 (0w20 is prescribed by manual). I've got some 0w20 left from my previous order and wonder if mixing two grades is safe in terms of oil physical properties and chemical compatibility. Do you guys practice mixing different grades? Engine takes 3.5qt so was thinking to mix 2.5qt of 0w30 and 1qt of 0w20.

Thanks

Re: Mixing Amsoil SS [Re: parshisa] #4441738
06/26/17 07:55 AM
06/26/17 07:55 AM
Joined: Dec 2012
Posts: 1,968
WNY
redhat Offline
redhat  Offline

Joined: Dec 2012
Posts: 1,968
WNY
You will have no issues whatsoever. I myself wouldn't feel the least bit concerned to run straight 0W-30 Amsoil SS.


17 Taurus Limited AWD - Dealer Fill of MCSB 5W-20 FL500S, 16k
14 Civic EX Coupe - NAPA Syn 0W-20 TG7317, 64k
09 Accord Sedan 5MT - Traveler 15W-40 XG7317, 151k
87 Regal Limited - 20W-50 VR1 WIX 51042
Re: Mixing Amsoil SS [Re: redhat] #4441749
06/26/17 08:05 AM
06/26/17 08:05 AM
Joined: May 2017
Posts: 960
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 960
TX
I just have some 0w20 leftovers so didn't want to leave them behind. Anyway, should be doing mid run UOA on my current 0w20 SS fill and I guess it will tell how it holds up.

THanks for the feedback

Re: Mixing Amsoil SS [Re: parshisa] #4441750
06/26/17 08:05 AM
06/26/17 08:05 AM
Joined: Sep 2010
Posts: 7,485
S California
OneEyeJack Offline
OneEyeJack  Offline

Joined: Sep 2010
Posts: 7,485
S California
Amsoil should be compatible with other Amsoil. By the way if you're running Amsoil or any other quality oil the ambient temperature will have little effect on the oil's ability to perform.

The police do fine with 5w-20 dyno oil in their patrol cars that live in desert climates and this includes extended idling with the a/c on.

Re: Mixing Amsoil SS [Re: OneEyeJack] #4441760
06/26/17 08:24 AM
06/26/17 08:24 AM
Joined: May 2017
Posts: 960
TX
parshisa Offline OP
parshisa  Offline OP

Joined: May 2017
Posts: 960
TX
Totally agreed. Although, some engines (small turbocharged in particular) are know to dilute oil with fuel. Last time I ended up with 5.9 vis oil just after 4.5K miles. I'm in a doubt it provides sufficient lubrication/protection. With that said, going one grade higher might be beneficial.

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