Compression Ignition Addict
Join Date: Oct 2012
Location: Cypress, Texas
Thanked 46 Times in 42 Posts
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If you can stick w/ a lower viscosity W rating (like 5 instead of 10 or 15), that will assist with your cold start oil flow. Synthetics also help with "clinging" and viscosity change elimination, plus the lack of viscosity improvers to break down.
I recommend Castrol Elixion 5W30 full synthetic diesel engine oil to Texas customers looking for a better oil, extended drains, cold-start performance, wear protection, and better MPG (up to 4%).
I personally use Castrol Tection 15W40 in our fleet, because it is very strong and is well-suited for heavy-duty/demanding applications. We drive all around Texas and Louisiana, sometimes off-road, lots of idle time, and plenty of heavy hauling.
2016 Cadillac Escalade ESV
2014 Mercedes E350 Sport
2012 F350 6.7L CCLB Lariat Ultimate SOLD
2007 F350 6.0L CCLB XL FX4
2010 F350 6.4L CCLB DRW XLT SOLD
1970 FORD TORINO COBRA 429
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