Sapper 157 Posted November 17, 2015 Share Posted November 17, 2015 Im currently running 10W-40 Valvoline High Mileage Blended Syn. I am going to be doing an oil change pretty soon and I was gonna go with Valvoline 10W-30 High Mileage Full Synthetic for my winter oil.Thoughts? Concerns? Quote Link to comment Share on other sites More sharing options...
DaveT Posted November 17, 2015 Share Posted November 17, 2015 How cold does it get? I run synthetic 10w 40 all year. In ea82 engines. Quote Link to comment Share on other sites More sharing options...
nipper Posted November 17, 2015 Share Posted November 17, 2015 Why the change? Quote Link to comment Share on other sites More sharing options...
Dee2 Posted November 18, 2015 Share Posted November 18, 2015 I'd stick with the stuff you're currently using. No need to change. 1 Quote Link to comment Share on other sites More sharing options...
Sapper 157 Posted November 18, 2015 Author Share Posted November 18, 2015 Why the change? Because Im nearing the end of my oil change interval Quote Link to comment Share on other sites More sharing options...
nipper Posted November 18, 2015 Share Posted November 18, 2015 I'ld just sick with what your using. Quote Link to comment Share on other sites More sharing options...
Subasaurus Posted November 18, 2015 Share Posted November 18, 2015 (edited) i've always done what you're thinking, 10W-40 between march-november and november-march i go with 10W-30, now does it actually do anything or help i don't know but thats what i've been doing for the past 3 years, before that it was always 10W-40 all year round. -my winters are around 31 degrees at their lowest point and the hottest point in summer is around 115degrees F. btw i just changed to 10W-30 yesterday on one of my Subies to get ready for "winter" if thats what you want to call it here in Texas. Edited November 18, 2015 by Subasaurus Quote Link to comment Share on other sites More sharing options...
DaveT Posted November 18, 2015 Share Posted November 18, 2015 31 isn't cold. One advantage of synthetic is that it doesn't overly thicken when cold. Once it's running, your engine is at 190 with a stock thermostat. The coldest I sometimes see is -15 here. Before I had a garage the synthetic makes a small difference in cranking speed in the morning. Having the largest battery that fits in the space, and 5 years or less age probably matters more here. The usual cross reference charts point to a battery a size or 2 smaller than I run. Quote Link to comment Share on other sites More sharing options...
Loyale 2.7 Turbo Posted November 18, 2015 Share Posted November 18, 2015 Im currently running 10W-40 Valvoline High Mileage Blended Syn. I am going to be doing an oil change pretty soon and I was gonna go with Valvoline 10W-30 High Mileage Full Synthetic for my winter oil.Thoughts? Concerns? Look here for Answers: ~► http://www.ultimatesubaru.org/forum/topic/126284-how-to-determine-which-is-the-best-motor-oil-for-your-car/ There's a Scan from Subaru information by the end of that writeup. I agree with Nipper, you should stick to 10W~40 all year round. Kind Regards. Quote Link to comment Share on other sites More sharing options...
hatchsub Posted November 18, 2015 Share Posted November 18, 2015 I stuck with 10w40 in my EA81s all year round. Quote Link to comment Share on other sites More sharing options...
MR_Loyale Posted November 21, 2015 Share Posted November 21, 2015 As long as you don't use a Fram filter you will be fine. 2 Quote Link to comment Share on other sites More sharing options...
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