Date: Sun, 16 Sep 2007 04:58:06 +0100 From: Eeyore <rabbitsfriendsandrelationsnospamail.com> Subject: Re: 9-5 questions on engine oil
"Charles C." wrote: > Question 2. Temporary fill. Toying with the idea of filling with a > mobil 10-40 semi-synthetic which I have (and which I found too thin for > my car I could hear the chain with it but not with SAAB's own oil). Put > new filter. Run the car for 200 miles or a week then drain. Flush again? 10-40 is approved for the engine is it not ? I can't see any problem with that. > Question 3. What do I put in it next? (assume some wear on the top > end). Fully synthetic 0-40 Mobil 1, Shell does one at 5-40. Semi > synthetic 10-40 (probably Castrol) or tell him to take it to the dealer? :-) Why 0-40 or 5-40 ? > Question 135. All but one of the services were by SAAB franchised > dealer(s). The one that was not says they put synthetic oil. I am kind > of aware of the debates about leaking seals on older cars when they are > filled with fully synthetic oil for the first time (assuming it has run > on semi-synthetic before). Should I tell him to use fully synthetic? > (I personnel use semi on mine and change it twice a year with total > mileage less than 9k per year). I think you're fretting overly. You say you think it's got fully synth in there already. Replace with the same I'd say. Graham