Lutzcat Posted December 5, 2006 Report Share Posted December 5, 2006 Advance Auto, formerly Discount Auto is discontinuing carrying Castrol 5W-50 full syn to make way for the Mobile brand. Price is $1.94 per quart. Lutzcat Link to comment Share on other sites More sharing options...
mastersmech1 Posted December 6, 2006 Report Share Posted December 6, 2006 Advance Auto, formerly Discount Auto is discontinuing carrying Castrol 5W-50 full syn to make way for the Mobile brand. Price is $1.94 per quart. Lutzcat , I just paid $6/qt. Is this a regional thing or nationwide. Where are you? Link to comment Share on other sites More sharing options...
07 Shelby Cobra Posted December 6, 2006 Report Share Posted December 6, 2006 , I just paid $6/qt. Is this a regional thing or nationwide. Where are you? was it the Ford recommended -B Synthetic? Wallymart only carried Castrol -A Check back of bottle. Link to comment Share on other sites More sharing options...
Lutzcat Posted December 6, 2006 Author Report Share Posted December 6, 2006 , I just paid $6/qt. Is this a regional thing or nationwide. Where are you? I'm located in Tampa, I'm taking for granted it is nationwide. I stopped by today to see if they had any info for the Motorcraft that I tried to order two weeks ago and seen it, they only had one quart left, Going to their main warehouse in the morning and clean um out. Do you think the Castrol will be just as good as the Motorcraft? Lutzcat Link to comment Share on other sites More sharing options...
07 Shelby Cobra Posted December 6, 2006 Report Share Posted December 6, 2006 I'm located in Tampa, I'm taking for granted it is nationwide. I stopped by today to see if they had any info for the Motorcraft that I tried to order two weeks ago and seen it, they only had one quart left, Going to their main warehouse in the morning and clean um out. Do you think the Castrol will be just as good as the Motorcraft? Lutzcat The Castrol Full Synthetic is Ford Rated......... WSS-M2C931-A My Shelby Manual Recommends Only............ WSS-M2C931-B How big of a difference is this? Will it matter?? Link to comment Share on other sites More sharing options...
Lutzcat Posted December 6, 2006 Author Report Share Posted December 6, 2006 was it the Ford recommended -B Synthetic? Wallymart only carried Castrol -A Check back of bottle. I'm going to double check, but I believe it meets all the requirements, it is the the full synthetic and not the blend. Lutzcat Link to comment Share on other sites More sharing options...
Jesse_Bolt Posted December 6, 2006 Report Share Posted December 6, 2006 Check out this old oil thread... 2007 Shelby PDI PCM Reset pdf & other Neat Info JB Link to comment Share on other sites More sharing options...
Jesse_Bolt Posted December 6, 2006 Report Share Posted December 6, 2006 JB Link to comment Share on other sites More sharing options...
Fastbackman Posted December 6, 2006 Report Share Posted December 6, 2006 Must just be your area. Online they still show 5.98. Link to comment Share on other sites More sharing options...
mastersmech1 Posted December 7, 2006 Report Share Posted December 7, 2006 Does anyone know the difference between the A and B spec? Link to comment Share on other sites More sharing options...
2008 Shelby Posted December 7, 2006 Report Share Posted December 7, 2006 Does anyone know the difference between the A and B spec? A = API SL B = API SM Link to comment Share on other sites More sharing options...
Jesse_Bolt Posted December 7, 2006 Report Share Posted December 7, 2006 A = API SL B = API SM ¿And what does SL & SM mean? «trucated» The only difference I could find was the maximum allowable percentage of Phosphorus (SL=.10%, SM=.08%) JB Link to comment Share on other sites More sharing options...
Alloy Dave Posted December 7, 2006 Report Share Posted December 7, 2006 Does anyone know the difference between the A and B spec? A = API SL B = API SM The SL oil is older, and was recommended for cars starting in 2001. The SM oil is the newest class introduced in late 2004. The SM oil has slightly improved chemical properties such as oxidation resistance and wear protection. The differences are minor. I'd be shocked if even the best chemist could tell which you had in your car once it's been run for a few hundred miles, although if you'd rather play it safe go with the SM. Read the bottom of page 4 in the center paragraph. oil_specs.pdf Dave (P.S. I studied Chemical Engineering for 2 years, then switched to Mechanical) oil_specs.pdf Link to comment Share on other sites More sharing options...
Pony Ride Posted December 7, 2006 Report Share Posted December 7, 2006 was it the Ford recommended -B Synthetic? Wallymart only carried Castrol -A Check back of bottle. Dave, does your Wal mart also have the Mobil 1 ? I checked the bottle and it does say SM Link to comment Share on other sites More sharing options...
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